Kagamine Rin & Len

Released on December 27, 2007, Rin &amp; Len Kagamine (鏡音リン・レン, Kagamine Rin/Len) is the second installment of the Vocaloid Character Vocal Series developed by Crypton Future Media Ltd. (CFM), male voice (Len) and female voice (Rin). At first, CFM projected a Vocaloid with low-teen girl's voice following Miku Hatsune, but there was a demand for a boy's, so CFM adopted a voice actress who can produce both sounds. The developer says that their family name was from the developing code combining Kagami (鏡, mirror) and Ne (音, sound), i.e., they are the mirror reflections meaning Rin "right" and Len "left." This is, however, NOT an official announcement of CFM. Also CFM had an intension to distribute them as twins, this idea was not adopted, either. Still CFM seems to have no objection to this prevailing knowledge. According to Crypton's official blog, the package includes two voice banks: one for Rin and another for Len, both provided by the seiyū Asami Shimoda (下田 麻美). Despite the double voice banks, the package still sells at the same price as Miku Hatsune.

On June 12, 2008, Crypton announced the updated edition, named "act2", would be released in early July 2008. Users who had bought the old version got an expansion disc free of charge. On June 18, 2008, beta demonstration songs using the new version were released on the company's official blog.

The act.2 version is an independent installation, and coexists with the initial software.

鏡音リン・レン カバーアルバム 「Prism」 (Kagamine Rin/Len Cover Album 「Prism」)~ 鏡音リン・レン feat. 下田麻美 (Kagamine Rin/Len feat. Asami Shimoda)



 * Release Date: June 10, 2009
 * Number of Discs: 1
 * Label: Universal Japan.
 * Length: 57:22 minutes


 * Track listing
 * Kokoro (Heart/Soul)
 * Daybreak
 * Rival
 * Ganbaro uyo
 * Otenba hime no uta
 * Rin Rin signal
 * Itazura Musume
 * Soundless voice
 * Zenmai shikake no komoriuta
 * South North Story
 * Meltdown
 * Gemini
 * Prism

悪ノ娘 / Aku no Musume (The Daughter of Evil)
Sung by Rin

Music and lyrics by Akuno-P (mothy)

(Original video by Akuno-P)
 * Nicovideo broadcast
 * Youtube broadcast


 * "Daughter of Evil" tells the story of an evil princess, represented by Rin, who rules over a 'yellow kingdom' with every luxury she could wish for at the expense of her people and has a servant (Len) who looks like her. The story chronicles how the king of "blue kingdom" (Kaito), who the Daughter of Evil loved, falls in love with a girl from the "green land" (Miku Hatsune). In a jealous rage, the Daughter of Evil tells her ministers to destroy the "green land" (as she does not know which girl is the one the king of blue loves). While the "green land" burns, the Daughter of Evil says, "Oh my, it's time for a snack". Later, a woman with red armor (Meiko) storms the Daughter of Evil's royal palace. Together with the angry people from all over the land, she seizes the Daughter of Evil, who is then sentenced to death at the guillotine. Before she is beheaded, however, the Daughter of Evil once more says her usual line: "Oh my, it's time for a snack", which may have been Len, who switched with her right before being captured. (According to Akuno-P, Rin's portrayal was based on Marie Antoinette.)


 * The tentative plot, which Akuno-P sketched out before he produced the song, was released on Akuno-P's blog, and it tells backgrounds and settings of the song. A queen and king ruled over a country, but both were struck down by a disease. They left behind their fourteen-year-old daughter, Rin, who grew up in luxury. Once she was fit to rule, she imposed heavy taxes on her country “on behalf of her mother” and started ruthless purges. When the commander of Imperial Guards of the country, who was also a hero and had saved the land many times in wars "with the name of a lion" (Leon, or "a Vocaloid made in Britain"), tried to appeal for the people. The Daughter of Evil ordered her servant to kill the hero, and after he did that, he commented that nobody could disobey the princess any more. As the hero died, his daughter (clothed in red) intented on revenge. This is the preliminary backstory of the song.


 * "Daughter of Evil" has spawned some other Vocaloid parody songs, including Kaito's "Yami no Ou" (Lord of Darkness), a funny and light-hearted story about a vampire who falls in love, "Negi no Musume" (Daughter of Leek) which is another comedy song from Miku's side; Miku Hatsune's "Midori no Musume" (Daughter of Green), telling the story of Daughter of Evil from Miku's side, Meiko's "Midori no Adauchi"/"Fukushuu no Musume" (Daughter of Vengeance), telling the story of Daughter of Evil from Meiko's side, "Ao no Ouji" or "Yoru no Hana" ("Prince of Blue" or "Night Flower")which tells the story from KAITO's side and UTAU's "Uso no Utahime" (The Diva of a Lie), chronicling the creation of the fan-made vocaloid (and eventual proto-UTAUloid), Kasane Teto.


 * Akuno-P later released a "velvet mix" on December 27, 2009 to celebrate Rin and Len's second birthday.

悪ノ召使 / Aku no Meshitsukai (The Servant of Evil)
Sung by Len

Music and lyrics by Akuno-P (mothy)

(Original video by Akuno-P)
 * Nicovideo broadcast
 * Youtube broadcast


 * 'Servant of Evil' is a parallel story to the 'Daughter of Evil', and tells the events of the song through the eyes of the Daughter of Evil's servant, who is portrayed by Len. Although he is actually her twin, for reasons unexplained, later became her servant while she became the queen. Although the Daughter of Evil is cruel and cold, her servant only sees her soft and innocent side, and serves her devotedly. However, visiting a 'land of green', Len happens to fall in love with a green-haired girl he sees there (Miku Hatsune). When the Daughter of Evil, in her jealousy, orders Len to have her killed, though, Len obeys without hesitation. (According to Akuno-P's blog, Len personally went into the green kingdom to save her when Rin ordered it burned; Rin, however, found out that Len was harboring her and ordered him to kill her.) Later, an uprising army (led by Meiko, a red knight, whom Akuno-P adds was assisted by Kaito) attack the palace intent on taking the Daughter of Evil's life. Her servant comes up with a plan to save her: they will trade their clothes and switch places. Since they are twins, no one will be able to tell the difference. Sure enough, the army is fooled, and the servant disguised as the queen is beheaded before a crowd, including the grieving queen. However, the servant tells us through the song, he has no regrets and is glad that he could serve his beloved sister until the end. His last wish was if he was reincarnated, he hoped to be twins with his sister again.


 * Akuno-P later released a "velvet mix" on December 27, 2009 to celebrate Rin and Len's second birthday.

リグレットメッセージ (Regret Message)
Sung by Rin

Music and lyrics by Akuno-P (mothy)

(Original video by Akuno-P)
 * Nicovideo broadcast
 * Youtube broadcast


 * The third song in the "Daughter of Evil" series, 'Regret Message', also known as 'Message of Regret', tells of the Daughter of Evil's feelings directly after 'Servant of Evil'. She realizes that it had been her own selfishness that had killed Len. She goes to the beach and throws a message in a bottle into the sea. This sight brings back a past memory when she and Len were together and the legend that if one wrote one's wish on a piece of paper, bottled it, and let it float out to sea, it would become true. (Also, as a princess, Rin would send messages to her servants in glass bottles.) The wish Rin made was "If we could be reborn, I want to be with you again", which was apparently also Len's wish before he died.


 * One PV shows Rin being reborn as a VOCALOID2 character and being introduced to Len, but this is not stated in any of the lyrics. This is not to be confused with Kokoro or Kokoro/Kiseki, although many people seem to connect both series.


 * This song is generally regarded as one of "Evil Series". But Akuno-P answers about it only this way ;
 * "I think that it is good by the interpretation of each person."
 * Therefore, we cannot know the Akuno-P's real intention about whether this song is one of the series or not.


 * Another clue was given in 2010 when Akuno-P released the fifth song in the Evil series, Shiro no Musume (Daughter of White). The song is an obvious part of the Evil series given its PV and lyrics, and the song directly quotes lines from both "Servant of Evil" and "Regret Message", somewhat confirming that the two are related.

Re_birthday
Sung by Len

Music and lyrics by Akuno-P (mothy)
 * Nicovideo broadcast
 * Youtube broadcast


 * The fourth and penultimate song in the "Daughter of Evil" series, Re_birthday tells what happened to Len after he was beheaded. He is alone in a dark room not being able to see, then he hears a voice and starts to remember the evil that he has done. Then his arms are in red handcuffs (representing blood shed) and his ankles are in blue chains (representing the tears shed). Suddenly Len hears a melody of someone's voice coming from somewhere (the melody sung is another song, Zenmai-Jikake no Komoriuta, sung by Rin and also by Akuno-P). He is forgiven his actions in the past, given a new birthday and reborn.


 * This song is generally regarded as one of "Evil Series" by audiences. However, actually it is not. It is one of another series of "Zenmai-Jikake no Komoriuta".
 * "Zenmai-jikake no Komoriuta", "Hakoniwano Shoujo", and "Re_birthday" are called "Zenmai-Jikake no Komoriuta Series" (nursing song of spring-work (clockwork)) by Akuno-P. In his blog, Akuno-P declares that 'Re_birthday' is the answering of 'Regret Message'. Thus there is no doubt that 'Re_birthday' and 'Regret Message' form a sub series.
 * Assuming that Regret Message is part of the Evil Series by the clues given in "Daughter of White", that would connect Re_birthday to the Evil Series.


 * The final song in the Evil Series, "Daughter of White", was sung by Haku Yowane and released in 2010.

下剋上 / Gekokujou (Rebellion/Revolution)
Sung by Rin and Len

Music and lyrics by Ichigyou-P

(Original video by Ichigyou-P)
 * Nicovideo Broadcast
 * Youtube broadcast


 * In Gekokujou, the Kagamine's sing about supplanting Miku as #1.


 * A fun, upbeat rap song, this is a must for all the hardcore Kagamine fans. The main idea involved is the Kagamine twins attempt to prove that they surpass Miku. Len talks about the 'false' rumors that he is shota.Towards the end of the first verse he starts to compliment on how his voice was his greatest attribute and talent, and says he needs more songs to cross swords with Miku as equals. Rin, during the second verse, bluntly states that she is sweeter, kinder than her sister Miku.


 * The course of the song is packed with the confidence of the Kagamine twins, many compliments of their skills and traits, and a considerable amount of thanks to the audiences.

俺のロードローラーだッ/ Ore no Road Roller da! (It's My Road Roller!)
Sung by Rin and Len

Music and lyrics by Meiyokaichou-P (Oyatsu-P)
 * Nicovideo broadcast
 * Youtube broadcast (without subtitles)


 * Rin and Len talk about their journey from creation at the company that made them (Crypton), to be bought by the consumer.After they are bought and installed,they behave at first, but they become getting out of hand as they get used to the new circumstances.


 * Another very short variation of this song is mixed with 'Daughter of Evil'. In the PV, Rin rushes in through the middle of the executed, rolls over the guillotine and rescues Len from the fate of a rolling head. A humorous take on the story, yet nonetheless leave many fans wishing that this was the actual ending, instead of Len meeting his horrible demise, dressed as Rin. Though there is a PV like that, the original lyrics have nothing to do with the 'Daughter of Evil' series.

ココロ / KOKORO (Heart or Soul)
Sung by Rin

Music and lyrics by Toraboruta-P

(Original video by Toraboruta-P)
 * Nicovideo Broadcast
 * Youtube broadcast


 * In Kokoro , Rin is a robot made by a lonely scientist. But she is missing something that can't be found in a program: a heart and a mind (kokoro means both heart and mind). Eventually her creator passes away, leaving her alone for several hundred years. Eventually she begins to wonder about the man who created her, and accesses his research Discovering more and more about the scientist and how hard he worked to create a kokoro for her, the robot is moved and is awakened to a world of new feelings. Overcome with emotion, the robot sings her feelings of sadness and gratitude to the person who created her. However, the kokoro which she found herself was too great for her fake body, and after some time the robot passes away.


 * KOKORO is a popular song on Nicovideo and Youtube, and many derivations including covers and PVs, have been made for it. One of the most popular and famous of these derivations is ココロ・キセキ / KOKORO/KISEKI (Heart or Soul/Miracle) by Jun-P (Zyun) Nicovideo,Youtube. Though there is no clue who the scientist is in KOKORO, Jun-P let Len sing the story of the scientist who created the robot in KOKORO, arranging the original music and lyrics with her own interpretation. Jun-P also used some parts of the original song and mixed them together. KOKORO/KISEKI serves as a prologue to KOKORO. The scientist creates a robot but realizes that she is missing something important: her kokoro. He wishes to tell her what happiness and sadness are, and so he begins working tirelessly at creating a heart and mind for her. However, the time is running out for his life will eventually come to an end. As he begins to lose hope, a miracle (KISEKI) suddenly happens: he recieves a message from the robot from the future, after she has created her own kokoro. The scientist obtains peace and passes away in tranquility. In KOKORO/KISEKI, Len is not directly portrayed as the scientest, but after Jun-P uploaded it, many PVs depicting Len as the scientist were made.


 * In addition to KOKORO and KOKORO/KISEKI there is a version where both songs are mixed together, both stories told at the same time. As the melodies of the two songs were written to complement each other, the final effect is a complete and harmonious experience.


 * In one of the other popular and famous covers, a spoken dialogue between the scientist and the robot is added at the intro, and it ends with the spoken line: Arigatou, otou-san (Thank you, Father), adding new insight into the story.


 * Main article and detailed information: Kokoro

炉心融解 / Roshin Yuukai -Meltdown- (Nuclear Fusion -Meltdown-)
Sung by Rin

Lyrics by kuma

Music written and composed by iroha(sasaki)

PV by Nagimiso.SYS

Title design by Shirow Miwa

Child Rin's clothing design by URAHANABI
 * Nicovideo broadcast
 * Youtube broadcast


 * A collaboration between multiple artists, this video was #1 on the 68th Weekly Vocaloid Rankings. Iroha says the lyrics and video represent conflicts of inner psychological world. In the video, Rin jumps into a reactor core/nuclear reactor and chokes someone, possibly to death. The little Rin stands for childish mind inside her.


 * The PV can be literally interpreted as Rin jumping into a nuclear reactor to commit a martyred suicide or figuratively as Rin trying to get rid of her past or to purge herself of her sins, and leave it behind in order to grow up and become an adult. There are various interpretations of this song.


 * There was a controversy over the video - it stayed up in the Weekly Vocaloid Rankings because people constantly made dummy accounts and put Meltdown on their MyLists (which is how the Vocaloid Rankings score songs). Though iroha(sasaki) asked the viewers to stop the illegitimate scoring did not end and in retaliation iroha(sasaki) deleted the video and put it up on Nagimiso.SYS's. This disqualified the video from being in the Rankings as the requirements are that the original composer put it up. (It also raised awareness of the cheating behind the Rankings, thus taking many long-lasting regulars such as Hatsune Miku no Shoushitsu, Miku Mikku ni Shite Ageru, and World is Mine off the list altogether.) The new PV put up on Nagimiso.SYS's account features several touched-up areas including a different-looking reactor, new countdown text, and added detail in certain scenes.

のろいのめがね /Noroi no Megane (The Cursed Glasses) ~ Stray girl in her lenses
Sung by Rin

Music and lyrics by Bucchigiri-P

Art by: Yoko Nei

Pixel art by: Joymecha-P

Logo: Sacrow
 * Nicovideo broadcast
 * Youtube broadcast


 * All of the sudden, a girl (Rin) finds herself in a strange world of RPG, wearing "the Cursed Glasses". An odd-looking stranger (Gakupo) appears, and tells her they are glasses of the legendary hero. She cannot slip off them and even worse, they distort everything around her. She sets out on a quest to find an ancient document which would tell her how to take them off. She struggles to comprehend what is going on through her new vision but eventually the strain of wearing the glasses becomes too much to bear and she releases a fit of anger.
 * This song is based heavily upon the RPG's of the 8-bit NES era. Additional monologue and back chorus voiced by Kamui Gakupo who performs a double role in the song, a stranger and a priest.

Transmit
Sung by Rin

Music and lyrics by Signal-P
 * Nicovideo broadcast
 * Youtube broadcast (without subtitles)


 * Signal-P, the producer of this song is said to have found the best way to tune Rin's voice, by switching the sound banks of Act1 and Act2 by the letter. The song is about never giving up hope and eventually reaching your goals, and focusing on believing that your dreams will come true.

SPICE!
Sung by Len

Music and lyrics by Ryuusei-P
 * Nicovideo broadcast
 * Youtube broadcast
 * This song is popular for its portrayal of Len as a young, womanizing man as opposed to his standard stereotype as an innocent boy or as a   shota. He states that he does not understand love and that passion is better.
 * Though the lyrics and original video are just telling how he is enjoying the affairs and do not mention who the women are, in some of the PVs of this song, other vocaloids such as Miku, Meiko, Luka (as his "playthings") and Kaito (as Rin's boyfriend) are depicted. Len grows jealous when he sees Rin with Kaito and Rin is shown as his "true love” as one of the extended interpretations of this song.

Fire Flower
Sung by Len

Music and lyrics by halyosy
 * Nicovideo broadcast
 * Youtube broadcast

Dolls
Sung by Rin

Music and lyrics by Rozenkreuz
 * Nicovideo broadcast
 * Youtube broadcast


 * A doll lives alone after her master is shot by unknown people. She sings alone to him forever and hopes to go to the place where her master has gone, Heaven. Eventually the doll is broken to pieces after many years and goes to heaven where she finally meets her master.



囚人 /Shuujin (Prisoner)
Sung by Len

Composed by Shuujin-P
 * Nico broadcast
 * Youtube broadcast


 * The setting according to the video seems to be in the time of the infamous holocaust during the World War II. Len is one of the many prisoners who were sent to concentration camps. As he does his routine of cleaning the camp, he encounters a beautiful young maiden (Rin). Len is fascinated by her so he decides to write her a letter one day, hoping the she would answer. His prayers being granted, his letter was given a reply. On a daily basis, they would meet for a brief moment and fly a paper plane across the barbed-wire wall. He found joy in his life just by getting letters from her--though he never conveyed his feelings for her.
 * Until a day came when the mysterious girl decided to head off somewhere far and bade farewell to him. (Though there is an explanation as to why she did go away, it was not interpreted until the reply to the song came). As she went away, he kept all her letters and treasured them dearly until one of the Generals and his henchmen decided to torment the young man by making fun of his attachment to the letters. They went as far as to tear the letters which triggered Len's anger and punched the General. In retort, the men decided to put him in the gas chambers to die as a punishment. Had he not taken action, would he still be alive? The answer is a bit ambiguous.
 * In the gas chambers, he struggles to get out with the thought of seeing the girl once more and ask her her name.
 * In the gas chambers, he struggles to get out with the thought of seeing the girl once more and ask her her name.
 * In the gas chambers, he struggles to get out with the thought of seeing the girl once more and ask her her name.

紙飛行機 / Kami Hikooki (Paper Plane)
Sung by Rin

Composed by Shuujin-P
 * Nico broadcast
 * Youtube broadcast


 * This song is the reply to Len's "Prisoner" but in Rin's point of view--the young girl whom Len had fallen for. In the video, Rin is the daughter of one of the Generals' in-charge with the concentration camp on which Len was in. Though aware of what is happening around her, she still sought for the accompany of Len, even with her frail body. She goes to meet with Len and fly him a paper plane--the letter--even though she suffers from a terrible illness which was never clarrified in the story. She eventually falls for him but as soon as she does, her father found out about her affair and forbade her to go out of the hospital and meet the boy. As time goes by, Rin gets weaker and weaker that moving her legs proved to be very difficult for her. She then decides to bid farewell to Len properly so he won't have to search for her or ponder of what happened to her. She makes an excuse that she'll be going somewhere far away, but as soon as she was about to leave, Len tells her that he will wait for her and that he'll treasure each and every letter she gave him. As the story goes on, it is shown that Rin's father was the one who put Len in even more agony by ripping the letters from Rin. He was also the one who gave the order to execute Len.
 * Rin on the other hand, is already paralyzed from the illness that she couldn't even grasp one of Len's letters. However, seeing how devoted Rin has become to Len, the father picked up the letter and placed it in her hand as a final act of kindness to his dying daughter. Rin is shown smiling when she dies,
 * In "heaven" Rin is found in front of the barbed-wire wall, the very same way she stood when she first met Len. It is then shown that on the other side, Len was there, only this time, the wall disappears. With that, they found true happiness by being with each other in their own world.
 * This PV and Prisoner's display Rin and Len as a couple or two people of no blood-relation--which is why many Kagamine fans find it hard to watch with the thought of "Twincest" covering the story.

アドレサンス (Adolescence)
Sung by Rin and Len Music by Signal-P Title/Logo by Sacrow Lyrics by Orange Illustrations by Hiro Tamura


 * NicoVideo Broadcast
 * Youtube Broadcast
 * Adolescence is a song about Rin and Len growing up, and they've come to the age where they can't share the same bed like they have when they were little children. It depicts at the fact that they no longer reflect each other as they each hit adolescence with lyrics such as "Holding hands in the distorted mirror, the length of our fingers no longer match." They both sing about how hard it is to be separated because they're always together. While Rin states throughout the song that she doesn't want Len to leave her, he remains hesitant throughout the song until the end when he states that he will no longer retreat from her.

Trick and Treat
Sung by: Rin and Len Original Music and lyrics by: OSTER-project


 * Nicovideo broadcast
 * YouTube Broadcast


 * "Trick and Treat" is a mild horror song created for Halloween. It is about Rin and Len, tricking and treating Miku, and apparently devouring her. The title of the song refers to the trick of deceiving and punishing of Miku, while the treat is about the various sweets and syrups they take from her. While Rin and Len initially appear innocent, welcoming, and friendly, they later appear as insane and mad. They invite the clueless Miku to play a "game" with them and blindfold her. Later, Len speaks of how flawless love does not exist and Rin sings of how through the blindfold there were things she thought she'd never see concluding with both saying how "lantern shadows that grew at night unconsciously frightened me." After their spiel, Miku's blindfold starts to fall off. Both Len and Rin at this point remove their friendly facades asking Miku if she really would like to be blinded. They then state that she wears many lies and that they should continue their "game" or "play." Miku at this point is mortified as the two friendly people she knew have shown their true intentions of possibly devouring her or simply killing her.

There are many PVs with this song. One of the most popular is a video using characters from Katekyo Hitman Reborn!, with Tsuna as Miku, Hibari and the other Guardians as victims that came before Tsuna and Chrome and Mukuro as the twins. It starts with puppet versions of Chrome and Mukuro dancing. Then, Tsuna is lured into a mysterious building. There, Mukuro and Chrome welcome him in and force him to play a game with them. Tsuna is then lost in a swirl of illusions and finds himself trapped in a room. After breaking out and attempting to escape, he comes across Hibari, who seems to be caught up in the Mist Guardians' game as well. The other Guardians are shown to be possesed by Mukuro (note that Lambo is in his 15-year-old state), and HIbari seems to be struggling to maintain control. The blindfold scene is shown is this PV as well. Chrome is also shown giving Tsuna his Sky Ring. In the end, Tsuna dances as a puppet with the Chrome and Mukuro puppets and then dropped and Chrome and Mukuro take a bow. After the credits, a twist ending shows that Tsuna was the one controlling the puppets, and therefore the entire PV. A double twist at the last half of the final second then shows Tsuna posessed by Mukuro, now implying that Tsuna had never managed to escape the 'game', and was, like his Guardians, a victim. In this PV, Chrome is portrayed as 'Treat', and is noticably more sadistic and confident. Mukuro is 'Trick', and looks slightly younger. He also appears to be leading everything, with Chrome/Treat as his close subordinate. This PV features only the Vongola Guardians. Its stye is very suitably dark for this song, with mainly dark or bold colors and white skin. Though very AU, this PV still retains much canon, such as Mukuro using his fifth realm. This PV is one in many other VOCALOID/Katekyo Hitman Reborn! crossovers. YouTube Brodcast (with English subtitles):

第二章「理想郷」/ Chapter: 2 Risoukyou (Utopia)
Sung by Rin and Len Composed by Shuujin-P
 * Youtube Broadcast
 * NicoVideo Broadcast

Utopia takes place in the distant (or near) future of Earth, where most of the population is wiped out from nuclear warfare. 50 years before the song's storyline, the United Nations (the meeting led by Kaito and Miku) proposes the Humanity Revival Project which is quickly placed into action. It is established that the public believes that humans are only distinctly defined by having a soul, thus they transfer the souls of humans into humanoid robots, saying science will overcome all problems such as hunger and physical pain. In the present storyline, it is Rin and Len's turn to be granted the privilege of new bodies of their own (sadly, after an argument the day before). Rin requests that she look similar to Len by the scientists.

The pair go through the procedure and Len meets Rin in her new form but realizes she's not the same person as before the procedure. Their human emotions quickly deteriorate, as they do not feel any pain whatsoever, whether it is physical or emotional. Because of these traits, they do not understand what it is like to be the complimentary trait or idea (sadness vs happiness, tired vs energetic, etc.) and quickly lose sight of what it's like to 'live'. In the end, they lose their identities as 'humans'...

This song links to A Faint Wish and is part of a 3 part series by Shuujin-P consisting of Utopia, A Faint Wish and Shin Seiki. Chronologically, according to the storyline, this song falls before both A Faint Wish and Shin Seiki, but was released by the composer as Chapter 2 of the series after Shin Seiki. This often confuses fans of the song order in which these fall in.

It should also be noted that Rin and Len are introduced into this song as a couple and not siblings.

第三章「一縷の願い」/ Chapter 3: Ichiru no Negai (A Faint Wish)
Sung by Rin and Len

Composed by Shuujin-P
 * Youtube Broadcast
 * NicoVideo Broadcast

Picking up where Utopia leaves off, A Faint Wish occurs 50 years after Utopia and 100 years after the original Humanity Revival Project was proposed by the United Nations. Due to the complication of the 'new humans', where they are simply souls transferred into android bodies, not understanding what it is like to have emotions and essentially be 'human', they swiftly eliminate those who are not of their kind. This quickly dwindles the remaining un-robot human population and engulfs the world into chaos once more, which is contradictory to what the original project's aim was.

The remaining un-robot humans are then slaughtered, leaving Rin and Len as the last two of 'old humanity'. They traverse through the android infested city to a Transdimensional-Orbital Interface, which would allow them to travel through time to, hopefully, prevent this catastrophe from ever happening. Under attack by the 'new humanity', they quickly activate the device and are given visions of their past lives.

Evidently, these past lives are also cameos from other songs composed by Shuujin-P which consist of:

Rin (or possibly both of them) realizes that through the ages, regardless of circumstances, they've been together one way or another and it would be heart breaking if they were to lose each other. Rin decides to not simply have Len save her again and shoves him into the Transdimensional-Orbital Interface chamber, quickly shutting the door and locking him in. She then starts up the machine, as Len desperately tries to convince her to just simply open the door. Rin, on the other hand is resolute in being a distraction, as there is not enough time for both of them to escape and dies at the hands of the Android Len from A Faint Wish, protecting Len as the chamber is readied. The city is now solely filled with androids with Rin eliminated and Len slipping through time through the use of the chamber. At the end, the chamber ominously changes from the Orbital Interface to an Elevator, and an Elevator Girl calls out: 「上へ参ります」 ("ue he mairi masu"), translated as "Going up!"

The appearance of the Elevator and the Elevator Girl signals the transition into Shin Seiki, which chronologically, according to the storyline, makes Shin Seiki occur after A Faint Wish. This song was released by the composer as Chapter 3 of the series as opposed to Chapter 2 (if Shin Seiki was Chapter 3). This often confuses fans of the song order in which these fall in.

第一章「新世紀」/ Chapter 1: Shin Seiki (The New Millennium)
Sung by Len

Composed by Shuujin-P
 * Youtube Broadcast
 * NicoVideo Broadcast

In this song, Len plays the role of a young man who is forced to watch all of the horrors and sadness of the world from a glass elevator. Miku Hatsune also appears as the operator of the elevator. Len asks Miku why he's inside the elevator, and she replies "There's really not much difference, your life and the elevator." First, he sees a himself as a little boy with a large gun, accompanied by Rin and Gakupo, in a poor country in the middle of a war. The country has little to no food or water, and the people in it are suffering and dying. Once again, Len asks Miku why he's in the elevator and seeing this sadness, and she simply answers "That's the way life goes."

Soon after, Miku shows Len himself as a businessman in an industrialized city. The city is rich, successful and seemingly content with their military technology and growing laziness. However, someone accidentally pushes a button to fire a nuclear missile at the city. Then, Len clings to Miku's arm, asking her "Why do I have to suffer mental anguish?" and again, she replies "There's really not much difference, your life and the elevator," but this time, she herself takes the form of Len. Suddenly, the elevator starts speeding downwards. Len then opens the elevator for himself to escape and then disintegrates along with the elevator. Next, Len is in limbo, surrounded by the planets, wondering to himself why humanity has doomed itself the way it has. He realizes that the world doesn't want war and suffering, and its people wants peace and harmony. He then creates a new peaceful world.

This song is evidently the last in a 3 part series released later consisting of Utopia, A Faint Wish and Shin Seiki: all of which are composed by Shuujin-P.

The order in which these songs would fall chronologically often confuses fans due to the fact that Shin Seiki was released earlier than both Utopia and A Faint Wish and the somewhat open ending of A Faint Wish which features the Elevator Girl from Shin Seiki as well as the ending for Shin Seiki which is also open ended. (Utopia occurs before A Faint Wish which transitions into Shin Seiki.) The naming of these songs also do not seem to chronologically fall in order, as Shin Seiki is titled on NicoNico as Chapter 1 as opposed to Chapter 3.

Some fans consider the series to be a cycle, where the Len from Shin Seiki is similar to the Len that narrates Utopia. There is some evidence that does debunk this, somewhat: as Utopia suggests, Rin and Len are a couple. In A Faint Wish and Shin Seiki, Rin and Len are siblings who are reincarnations of the Rin and Len from Utopia.

Another possibility is that Len from Shin Seiki had appeared before the timeline in Utopia due to his actions jumping out of the elevator and changing humanity's past, but no official information has been released on the real ending and is left to interpretation.

恐怖ガーデン/ Kyoufu Gaaden (Fear Garden)
Sung by Rin

Music and lyrics written by Chaa-P
 * Nico broadcast
 * Youtube broadcast

Rin sings about her lovely garden of human arms as the stems and hands of others as the flowers. Near the end of the song Rin sighs and says it's all a lie; she never took the arms and hands of the other Vocaloids, though she giggles and says that maybe she did.

パラジクロロベンゼン【破壊系洗脳ソング】/ Parajikurorobenzen 【Hakaikei Sennou Song】 (Paradichlorobenzene 【Destructive-type brainwashing song】)
Sung by Len, background vocals by Rin

Music and lyrics written by Owata-P
 * Nico broadcast
 * Youtube broadcast with subtitles

Len sings of the tendency for artists to view their work as bad and become jealous of others' work, which they see as "better". As a result, these artists will usually try to erupt in violence and rage against him/herself and others.

The word "Paradichlorobenzene" is repeated constantly throughout the video, and has little to do with the meaning of the song - in fact the song is said to have no meaning ("Is there any meaning to this song? There is no meaning to this song. Is there any sin in this song? There is no sin in this song.") There are also frames that flash for less than a second that explain details of the chemical (C6H4Cl2, also known as 1,4-Dichlorobenzene or paradichlorobenzene).

The song is the third song of Owata's "Benzene series" (Benzene, Nitrobenzene, and Paradichlorobenzene), and is arguably the most popular in the series. It features an animated PV featuring both Len and Rin and computer graphics. The song also lasted in the Weekly Vocaloid Rankings for ten consecutive weeks, even scoring the first place spot for two weeks in a row.