からくり卍ばーすと (Karakuri卍Burst)

Background
"Now is the witching hour― Huge criminal organizations and special police, killing hostile dolls and special soldiers. Two people meet each other tonight, fight until be slain. Destroy everything That is, the proof of existence"

- Author's comment

"Karakuri卍Burst" was uploaded on January 15, 2011 and is Hitoshizuku-P's thirteenth original VOCALOID work. This is her first collaboration with Yama△ featuring him playing the guitar (previous collaborations only featured Yama△ mixing the audio).

Aside from being Hitoshizuku-P's first work using the Kagamines append, it was mentioned in the song's description that it was also to celebrate that package's release on December 27, 2010.

Tsubaki (Rin) is shown standing beneath the moon, as if approaching. Ren (Len) is shown standing before hundreds of dead bodies. The lyrics begin the song by singing about how she's visiting a sleepless town. Then, Tsubaki pulls out a gun, and remarks that her fingers, once she pulls the trigger, will become stained in a brilliant red. She sings about her desire to destroy. She says that humans are "worthless, brittle, and fragile", and that "they are, after all, merely discarded puppets". In a flashback, Miku looks down on Tsubaki, asks why she was born, and Tsubaki begs Miku to tell her the answer.

Then, Ren enters the song and sings about how there are no such things as coincidences. Ren sings about his own desire to destroy. Ren says that he'll destroy everything, and that he wants all sin to vanish. He says that "all sinners are, after all, worthless pieces of scum". When Tsubaki asks him why he spared her he says he'll tell her the answer. Just when the two have each other's life on the line, a brief flashback of the two laughing together appeared. The song ends with a cliffhanger.

This song has reached the Hall of Fame. It is featured in the EXIT TUNES' compilation album Vocalocluster, Yamashizuku's albums EndlessroLL and Shuffle!!2, Yamashizuku's mini-album Karakuri卍Burst, and Yama△'s album Laboratory.