NND / YT (subbed)
Original チミドロスイッチ
Romaji Chimidoro Suicchi
Singer(s) MAYU
Release Date December 4, 2012
Collaborators you-ring (illustrations)
Series -
"The one who pressed the switch, it wasn’t me"

Bloodstained Switch is a song released by Akuno-P on December 4, 2012. It follows the story of a girl who suffers from a serious medical condition: Hereditary Evil Raiser Syndrome


The story takes place as a girl explains that she is not responsible for the death of her father and that it was another her. Suffering from Hereditary Evil Raiser Syndrome, the girl insists that she loved her father and always watched him as he worked and obeyed him when she was told not to touch the switch. However, the other her came out and pressed the switch instead. As the song progresses, the medical journal by the doctors watching her is displayed, along with the girl's personal diary. At the end of the song, she begs not to be given the injection, saying that she doesn't want it.


MAYU's vocals are utilized for the duration of the song, with a radio filter used initially. The song also utilizes piano, synth drums, electric guitar, and bass guitar.

The song's opening line begins at 0.08 and ends at 0.14, leading to the song's opening instrumentals which end at 0.30. The first verse ends at 0.58, leading into a pre-chorus until 1.14, when the first chorus begins. A short instrumental break follows afterwards, at 1.28. The second verse begins at 1.44, followed by the second pre-chorus at 1.58. The second chorus starts at 2.13, accompanied by an instrumental refrain at 2.29. The bridge begins at 2.43, followed by the final chorus at 2.58. The final part of the song is dedicated to chanting, starting at 3.12. The song ends at 3.47.


PV TextEdit




Conceptualization and OriginEdit

  • The song's title contains the characters for the Japanese word 血みどろ (chimidoro); aside from meaning "bloodstained", the word also means "desperate" or "frantic", referring to the girl's struggle against her other, evil personality.
  • The word "switch" is a play on words, referring to both the physical switch and the girl's "switch" between her personalities.
  • Because there were no ties period-wise to his other existing songs during that time, mothy purposefully chose the default outfit for MAYU as the design for the character.[1]


  • The doctors' medical journal mentions Dissociative Identity Disorder, a real-life mental disorder characterized by the development of split personalities.
  • The medical journal also mentions adam and merry-go-round medicine; this may be a reference to Adam Moonlit and Alice Merry-Go-Round.
  • The song makes use of blue and red to symbolize good and evil, respectively; a similar color symbolism is also used in Full Moon Laboratory.



  1. The Heavenly Yard - January 12, 2013 - 既存曲とは時代的な繋がりはない、独立した曲です。 だからイラストの衣装もMAYUのデフォルトです。

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.