Original: The original version of the song first released as a short version in the game Project Sekai: Colorful Stage! feat. Hatsune Miku on December 15, 2021. The full version was later uploaded with a PV to niconico and YouTube on February 28, 2022. It was then featured on Waltz of the Deceased: Deadly Sins of Evil SEKAI EDITION+.
In an official comment about the song's release, mothy stated that the themes of the song were "the story after the story" and "a fun yet disturbing banquet".
mothy tweeted out the lyrics to the game size version of the song after it was released in Project Sekai: Colorful Stage! feat. Hatsune Miku. These lyrics mistakenly used the word 庶民shomin instead of 諸侯shokou in the first verse.
The lyrics reference mothy's stories Unlock City and Story of Evil, which both take place in the Fourth Period.
mothy noted that since the four primary Rin & Len characters featured in the series were on the moon and in the movie theater respectively, he chose Rin Chan to be featured instead.
mothy selected the characters featured in the PV besides the ones mentioned in the songs' lyrics, and specifically ended up listing characters who should not be featured in the venue.
