It’s Just Not My Night: Tale of a Fallen Vampire Queen (Japanese: 世が夜なら!, Hepburn: Yo ga Yoru nara!)

It was serialized in Kodansha's manga app and website Magazine Pocket from June 2020 to October 2021, with its chapters collected in three tankōbon volumes.

Written and illustrated by Muchimaro, It's Just Not My Night started in Kodansha's manga app and website Magazine Pocket on June 24, 2020,[2] while its first chapter was also published in Weekly Shōnen Magazine.

[4][5] Kodansha collected its chapters in three tankōbon volumes, released from December 9, 2020,[6] to January 7, 2022.

[7] In North America, the manga has been licensed for English released by Seven Seas Entertainment, who will publish it under their Ghost Ship mature imprint starting on April 5, 2022.