炉心融解 (Roshin Yuukai)

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Background[]

“It's surely that kind of a world.”
—Author's comment

"Meltdown" is an original song by iroha(sasaki). It was uploaded to Soundcloud on September 6, 2014, and to YouTube on October 19, 2021.

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

Iroha has said the lyrics and video represent conflicts in the singer's 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 innocent childish mind inside her. The choking scene symbolizes erasing her past self and starting anew.^[1]

The song entered the Hall of Myths in November 2023, becoming the first Rin song to do so. It also exceeded over 10 million YouTube views. Hence, this is iroha(sasaki)'s most notable song, and one of Rin's most notable songs.

Controversy[]

There was a controversy over the video and the Weekly Vocaloid Ranking on NicoNico. Taking advantage of the Vocaloid Ranking's score system, people made dummy accounts and put the song on their MyList just to increase the song's score in the ranking, making it stay in the Top 20 indefinitely. Though iroha(sasaki) asked his viewers to stop this illegitimate practice, they did not stop and in retaliation, iroha deleted the video from his account and put it up on nagimiso's. This disqualified the video from being in the rankings, as one of the requirements is that the original composer must submit it.

This raised awareness about the cheating behind the rankings. The score system was modified, thus taking many long-lasting regulars such as "Hatsune Miku no Shoushitsu", "Miku Miku ni Shite Ageru", and "World is Mine" off the list altogether.

The reupload put up on nagimiso's account features several touched-up areas including a different-looking reactor, new countdown text, and added detail in certain scenes. It was later uploaded to Soundcloud on September 6, 2014, and to YouTube on October 19, 2021.

Succeeding versions[]

-NitamagoMix-

Featuring	Hatsune Miku
Producers	baker (arrangement), Nagimiso.SYS (illust)
Categories	Arrangement; VOCALOID Cover
Description	A techno remix by baker of Kagamine Rin's original "Meltdown", sung by Hatsune Miku. The video was able to climb all the way up to No.2 in the Nico Nico Daily charts and was able to receive around 44,000 views in a very short period of time after it was uploaded. This arrangement was featured in the album retimer.

Hard R.K. mix

Featuring	Kagamine Rin
Producers	cosMo (arrangement), Nagimiso.SYS (illust)
Categories	Arrangement
Description	A popular remix of "Meltdown" done by CosMo and illustrated again by Nagimiso.SYS. This version features a different music arrangement as well more expressiveness in Rin's voice, with various voice breaks and changes of pitch. The PV also features a new design for Rin, looking younger than her original depiction and wearing a lolita dress. This new design resulted in being more popular than her original one. The Hard R.K. mix received its own merchandising and inspired "Meltdown"'s module for Project Diva 2nd. This song was also featured in the EXIT TUNES compilation album EXIT TUNES PRESENTS Vocalolegend feat. 初音ミク

Asami Shimoda's Cover

File:Album Asami Shimoda PRISM.jpg

Featuring	Asami Shimoda
Producers	iroha(sasaki)
Categories	Human Cover
Description	A cover of the song by Asami Shimoda, featured on the album Prism.

Ryu☆ Remix

Featuring	Kagamine Rin
Producers	Ryu☆
Categories	Arrangement
Description	This version was featured in the EXIT TUNES compilation album EXIT TUNES PRESENTS SUPER PRODUCERS BEAT.

炉心融解 Hard-R.K.R3.1 mix

Translation	Roshin Yuukai Hard-R.K.R3.1 mix
Featuring	Kagamine Rin
Producers	cosMo (arrangement), Nagimiso.SYS (illust)
Categories	Arrangement
Description	This version was featured in the albums retimer and Breaktime -Futago + a Na Nakamatachi- (Breaktime -ふたご＋α ななかまたち-).

Roshin Yuukai/ DIVELA REMIX

Featuring	Kagamine Rin and Kagamine Len V4X
Producers	DIVELA
Categories	VOCALOID Cover; Arrangement
Description	DIVELA's remix cover for the KARENT presents 鏡音リン・レン 10th Anniversary -LODESTAR-

SF6 Library version

Producers	iroha(sasaki)
Categories	Arrangement

Vivid BAD SQUAD Archives Version

Featuring	Vivid BAD SQUAD: Azusawa Kohane (CV: Akina), Shinonome Akito (CV: Imai Fumiya)
Producers	SEGA, Colorful Palette, Crypton Future Media, Inc.
Categories	Human Cover; Arrangement
Description	Released as part of the Vivid BAD SQUAD Archives web series for Project SEKAI: COLORFUL STAGE! feat. Hatsune Miku.

Lyrics[]

Japanese (日本語歌詞)	Romaji (ローマ字)
街明かり華やか	machi akari hanayaka
エーテル麻酔の冷たさ	eeteru masui no tsumetasa
眠れない午前二時	nemurenai gozen ni-ji
全てが急速に変わる	subete ga kyuusoku ni kawaru

オイル切れのライター	oiru kire no raitaa
焼けつくような胃の中	yaketsuku you na i no naka
全てがそう嘘なら	subete ga sou uso nara
本当によかったのにね	hontou ni yokatta no ni ne

君の首を絞める夢を見た	kimi no kubi wo shimeru yume wo mita
光の溢れる昼下がり	hikari no afureru hirusagari
君の細い喉が跳ねるのを	kimi no hosoi nodo ga haneru no wo
泣き出しそうな眼で見ていた	nakidashisou na me de miteita

核融合炉にさ	kakuyuugouro ni sa
飛び込んでみたいと思う	tobikondemitai to omou
真っ青な光包まれて奇麗	massao na hikari tsutsumarete kirei
核融合炉にさ	kakuyuugouro ni sa
飛び込んでみたら	tobikondemitara
そしたら	soshitara
すべてが許されるような気がして	subete ga yurusareru youna kigashite

ベランダの向こう側	beranda no mukougawa
階段を昇ってゆく音	kaidan wo nobotteyuku oto
陰り出した空が	kageridashita sora ga
窓ガラスに部屋に落ちる	mado garasu ni heya ni ochiru

拡散する夕暮れ	kakusansuru yuugure
泣き腫らしたような陽の赤	nakiharashita you na hi no aka
融けるように少しずつ	tokeru you ni sukoshi zutsu
少しずつ死んでゆく世界	sukoshi zutsu shindeyuku sekai

君の首を絞める夢を見た	kimi no kubi wo shimeru yume wo mita
春風に揺れるカーテン	harukaze ni yureru kaaten
乾いて切れた唇から	kawaite kireta kuchibiru kara
零れる言葉は泡のよう	koboreru kotoba wa awa no you

核融合炉にさ	kakuyuugouro ni sa
飛び込んでみたいと思う	tobikondemitai to omou
真っ白に記憶融かされて消える	masshiro ni kioku tokasarete kieru
核融合炉にさ	kakuyuugouro ni sa
飛び込んでみたらまた昔みたいに	tobikondemitara mata mukashi mitai ni
眠れるようなそんな気がして	nemureru you na sonna ki ga shite

時計の秒針や	tokei no byoushin ya
テレビの司会者や	terebi no shikaisha ya
そこにいるけど見えない誰かの	soko ni iru kedo mienai dareka no
笑い声飽和して反響する	waraigoe houwashite hankyousuru

アレグロ・アジテート	areguro･ajiteeto
耳鳴りが消えない止まない	miminari ga kienai yamanai
アレグロ・アジテート	areguro･ajiteeto
耳鳴りが消えない止まない	miminari ga kienai yamanai

誰もみんな消えてく夢を見た	dare mo minna kieteku yume wo mita
真夜中の部屋の広さと静寂が	mayonaka no heya no hirosa to seijaku ga
胸につっかえて	mune ni tsukkaete
上手に息ができなくなる	jouzu ni iki ga dekinaku naru

あああああああああああああ！！！！！	aaaaaaaaaaaaa!!!!!!

核融合炉にさ	kakuyuugouro ni sa
飛び込んでみたらそしたら	tobikondemitara soshitara
きっと眠るように消えていけるんだ	kitto nemuru you ni kiete ikeru n da
僕のいない朝は	boku no inai asa wa
今よりずっと素晴らしくて	ima yori zutto subarashikute
全ての歯車が噛み合った	subete no haguruma ga kamiatta

きっとそんな世界だ	kitto sonna sekai da

Below is an unofficial English translation: via Project DIVA. Amendments may have been made to the original translation. —Featured in Hatsune Miku -Project DIVA- F 2nd, the writer is uncredited.

The city lights are spectacular,
but I feel ether's lingering chill
I can't sleep, It's 2 AM,
And everything's changing so fast

I'm like a lighter out of fluid
My insides are on fire
Sometimes I wish
It was all a lie

In my dream I strangled you
In the languid afternoon light
I watched your throat, thin and twitching
Through eyes brimming with tears

I want to jump into the core
Beauty wrapped in pure blue light
If I could jump into the core
I feel as if all would be forgiven

The second hand on a clock, a TV host
Someone there I just can't see
Their laughter echoes as it swells

Allegro agitato
The ringing in my ears won't fade, won't stop
Allegro agitato
The ringing in my ears won't fade, won't stop

I dreamed the whole world vanished
In the night, my room feels vast
And the silence chokes my heart
Making it hard to breathe

If I jumped into the core
I'd vanish, like I had gone to sleep
A morning without me would be perfect
All the gears everywhere meshing together

That's how the world would be

Derivatives[]

Ariel's Cover ft. Nekomura Iroha

Featuring	Nekomura Iroha
Producers	Ariel (cover)
Categories	VOCALOID Cover

Lucifer's Cover ft. Kagamine Rin

Featuring	Kagamine Rin V4X
Producers	Lucifer (cover, VSQx)
Categories	VOCALOID Cover

darkninjavn2011's Cover ft. Hatsune Miku

Featuring	Hatsune Miku Append Solid
Producers	darkninjavn2011 (cover), Sango312 (VSQ)
Categories	VOCALOID Cover

darkninjavn2011's Cover ft. Hatsune Miku

Featuring	Hatsune Miku Append Dark
Producers	darkninjavn2011 (cover), Sango312 (VSQ)
Categories	VOCALOID Cover

yr88's Cover ft. KAITO

Featuring	KAITO
Producers	yr88 (cover)
Categories	VOCALOID Cover

Rocket's Cover ft. KAITO

Featuring	KAITO V3
Producers	Rocket (cover), Sango312 (VSQ), Uuru (illust)
Categories	VOCALOID Cover

Lamunan's Cover ft. VY2

Featuring	VY2
Producers	Lamunan (cover), Sango312 (VSQ)
Categories	VOCALOID Cover

Muuchupu's Cover ft. Kagamine Len

Featuring	Kagamine Len Append Power, Cold, Serious
Producers	Muuchupu (cover), Sango312 (VSQ), Nagashino (illust)
Categories	VOCALOID Cover

KiraChiNya's Cover ft. GUMI

Featuring	GUMI V3
Producers	KiraChiNya (cover), Sango312 (VSQ), chicken nugget (illust)
Categories	VOCALOID Cover

Slapegg's Cover ft. MEIKO

Featuring	MEIKO V3 Power
Producers	Slapegg (cover, mixing), Sango312 (VSQ)
Categories	VOCALOID Cover

cillia's Cover ft. Kagamine Rin [koma'n Piano Ver]

Featuring	Kagamine Rin
Producers	cillia (cover), Sango312 (VSQ), Koucya (illust)
Categories	VOCALOID Cover; Arrangement

McKatherine's Cover ft. Otomachi Una and SF-A2 miki

Featuring	Otomachi Una, SF-A2 miki
Producers	McKatherine (cover, PV, VSQx)
Categories	VOCALOID Cover

Sango312's Cover ft. Namine Ritsu

Featuring	Namine Ritsu
Producers	Sango312 (cover, VSQ, & UST)
Categories	UTAU Cover

MJQ's Cover ft. Megurine Luka

Featuring	Megurine Luka
Producers	MJQ (cover), Sango321 (VSQ)
Categories	VOCALOID Cover

Bai Fen Hao 73's Chinese Cover ft. Yuan Xiao and Yong Qi

Featuring	Yuan Xiao, Yong Qi
Producers	Bai Fen Hao 73
Categories	Sharpkey Cover; Alternative Language

Yoppei's Cover

Featuring	Yoppei
Categories	Human Cover
Description	A cover by Yoppei. It has reached over 6,000,000 views on Niconico and has also been exploited for soramimi lyrics.

ZEA Cornelia's Cover

Featuring	ZEA Cornelia
Producers	BEAtrice (illust), Ittou's Soundworks (mixing), ZEA Cornelia (movie)
Categories	Human Cover; Fanmade PV
Description	A cover by Yoppei. It has reached over 6,000,000 views on Niconico and has also been exploited for soramimi lyrics.

Kuraiinu's English Cover

Featuring	Kuraiinu
Producers	Kuraiinu (English lyrics adaption, mix), farpras (arrange)
Categories	Human Cover; Alternative Language

Lollia's English Cover

Featuring	Lollia
Producers	Lollia (English lyrics adaption, video), Veto (art), Sleeping Forest (mix, master)
Categories	Human Cover; Alternative Language; Arrangement

Roshin Yuukai -melt down- JunK Arrange

Featuring	Kagamine Rin
Producers	rerulili (guitar), Kihee (bass), toku (piano & mixdown), hatsuko (illust), nagimiso (material), Mienohito (video)
Categories	Arrangement
Description	A jazzy "Meltdown" remix by rerulili. This version features various jazz instruments like the bass, piano and drums.

Studio Kit Remix

Featuring	Kagamine Rin
Producers	KIT
Categories	Arrangement
Description	A hard and catchy trance remix realized by Studio Kit.

koma’n's Piano Arrangement

Producers	koma'n
Categories	Arrangement

marasy's Piano Arrangement

Producers	marasy
Categories	Arrangement

Osamuraisan's Guitar Arrangement

Producers	Osamuraisan
Categories	Arrangement

8-bit Arrangement

Producers	branflakes325
Categories	Arrangement

Music Box Arrangement

Producers	sakaki kazumiya (arrangement), potako (illust)
Categories	Music Box Arrangement

Poyzo's PV (ローリン融解)

Featuring	Poyzo
Categories	Fanmade Typograhy PV
Description	A typography PV of "Rolling Melt" by Poyzo.

ロリ誘拐

Translation	Rori Yuukai (Loli Kidnapping)
Featuring	Kagamine Len
Producers	Oten-P
Categories	Spin-off
Description	A "Meltdown" parody with a lolicon Twist. This parody proved to be quite popular, receiving various VOCALOID covers and fanmade PVs.

御兄誘拐

Translation	Onii Yuukai (Big Brother Kidnapping)
Featuring	Kagamine Rin, Megurine Luka, Hatsune Miku, KAITO
Producers	Chanagi-P (lyrics), Maroyan (illust)
Categories	Spin-off
Description	A parody song and a sort of answer song to the KAITO's version of Loli Yuukai. On this versions the roles are swapped and now KAITO is the one sexually harassed by Rin, Miku and Luka. The song was well received, winning a place on the weekly ranking, staying on the top 5 during two weeks (#118, #119).

裸身融解

Translation	Rashin Yuukai (Naked Meltdown)
Featuring	KAITO
Producers	Shinya-P (lyrics), luna (illust)
Categories	Spin-off
Description	A parody sung by KAITO with a "S&M twist".

ローリン融解

Translation	Rolling Yuukai (Rolling Melt)
Featuring	Kagamine Rin, Hatsune Miku
Producers	Nise
Categories	Mash-up
Description	A mix of wowaka's "Rolling Girl" with "Meltdown".

Lyrics Shuffle

Featuring	Kagamine Rin, Asami Shimoda
Producers	Ennea
Categories	Mash-up
Description	The vocals have been shuffled and mixed together to create an unintelligible, meaningless, and humorous result.

Other media appearances[]

Literatures[]

This song was featured in the following literatures:

Piano Solo Yasashiku Hikeru collection. (piano sheet music)
Vocaloid Best Selection series. (sheet music)
VOCALO☆Band Score, Vol.2

Discography[]

This song was featured in the following albums:

Into The Reactor
Roshin Yuukai (single)

This song was featured in the following compilation albums:

Vocalostar
初音ミク ‐Project DIVA‐ 2nd NONSTOP MIX COLLECTION
Digital Trax presents VOCALO★POPS BEST feat. Hatsune Miku
初音ミク -Project DIVA- extend Complete Collection
MIKUNOPOLIS in LOS ANGELES “Happy to meet you! I'm Hatsune Miku”
Vocalogemini
Gekkaneta Vol.03
VOCALOID chouBEST -memories-
Kagaminext
KARENT presents 鏡音リン・レン 10th Anniversary -LODESTAR- (DIVELA REMIX ver.)

Concerts[]

This song was featured in the following concerts:

MikuExpo Live in Taiwan 2016
MikuExpo China Tour (Beijing only)
MikuExpo Live in USA and Mexico 2018
SNOW MIKU LIVE! 2019 (Day 1)
Kagamine Rin & Len Happy 14th Birthday Party 「Two You☆★」

Video games[]

This song was featured in the following video games:

CHUNITHM Series[]

CHUNITHM STAR / STAR PLUS
CHUNITHM AMAZON / AMAZON PLUS
CHUNITHM CRYSTAL / CRYSTAL PLUS

CHUNITHM PARADISE / PARADISE LOST
CHUNITHM NEW / NEW PLUS

maimai Series[]

maimai MURASAKi / MURASAKi PLUS
maimai MiLK / MiLK PLUS
maimai FiNALE

maimai Deluxe / Deluxe PLUS
maimai Deluxe Splash / Splash PLUS
maimai UNiVERSE / UNiVERSE PLUS

O.N.G.E.K.I. Series[]

O.N.G.E.K.I. PLUS
O.N.G.E.K.I. SUMMER / SUMMER PLUS

O.N.G.E.K.I. R.E.D. / R.E.D. PLUS
O.N.G.E.K.I. bright / bright MEMORY

SOUND VOLTEX Series[]

SOUND VOLTEX BOOTH
SOUND VOLTEX II -infinite infection-
SOUND VOLTEX III GRAVITY WARS

SOUND VOLTEX IV HEAVENLY HAVEN
SOUND VOLTEX VIVID WAVE
SOUND VOLTEX EXCEED GEAR

jubeat Series[]

jubeat Qubell
jubeat plus
jubeat clan

jubeat festo
jubeat Ave.
jubeat (app)

Mirai da Gakki (FutureTomTom) Series[]

Mirai da Gakki
Mirai da Gakki Ver.2

Dance Dance Revolution Series[]

Dance Dance Revolution A3

Groove Coaster Series[]

GROOVE COASTER 2 ORIGINAL STYLE
GROOVE COASTER 3 LINK FEVER
GROOVE COASTER 3EX DREAM PARTY
GROOVE COASTER 4 STARLIGHT ROAD

GROOVE COASTER 4EX INFINITY HIGHWAY
GROOVE COASTER 4MAX DIAMOND GALAXY
Groove Coaster: Wai Wai Party!!!!

Hatsune Miku -Project DIVA- Series[]

Other games[]

pop'n Rhythmin
Hatsune Miku: Dreamy Vocal
REFLEC BEAT plus
Tower of Saviors (Ultimate Stage and Character Card)

WACCA Reverse
Project SEKAI COLORFUL STAGE! feat. Hatsune Miku
MUSIC DIVER

Gallery[]

References[]

↑ iroha's Blog

External links[]

Official[]

Illustrations: (1) / (2) — pixiv
DL & Streaming platforms:
- iTunes
- Spotify
- Spotify (Kagaminext)
- Spotify (MIKUNOPOLIS in LOS ANGELES)
Karaoke — Google Drive
STEM Data — Google Drive

Unofficial[]

UTAITE Database
萌娘百科: Moegirlpedia
ピクシブ百科事典: Pixpedia
ニコニコ動画: niconico video
VOCALOID Lyrics Wiki
Project SEKAI Wiki
Project DIVA Wiki
Musicbrainz (work)
Musicbrainz (recording)
Musicbrainz (recording) (PV)
Musicbrainz (recording) (MIKUNOPOLIS in LOS ANGELES)

[1] roha's Blog

[1]