Instrumental: An instrumental of the original linked from its niconico upload.
The PV was illustrated by Maruino and created by THETA.
mothy stated that the song was initially conceptualized as part of The Evillious Chronicles series, and chose to use VY1 to distinguish it from The Evillious Chronicles when he made it an independent story.
The song's title has also been translated as Sleepless Torture Tower.
The song was paired up with Unlock Blackbox [Instrumental] in supplementary material for EVILS EXTRA.