Fiend's Song

The manga centers on Kamo and his partner Tora, who work in the underworld as "avengers for hire," taking on jobs from the victims of violent crimes and families seeking vengeance for wrongs done to them.

A spin-off series set 6 years before the events of Zenaku no Kuzu focused on Yumeji Sonoda's college days.

Enoki Kayoko leads the Tokyo branch of the “Breakfast Club”, an organization that aids victims seeking revenge in a way different from Kamo and Tora. What drove her to join this mysterious group? Uncover her past in this gripping spinoff of Gedou no Uta!

The murderer Konno Chika stands out in the story of "Gedou no Uta." A spin-off revolving around "urban legends" begins with her as the main character! The door to a mysterious world opens when she meets the occult researcher Kuze! A spin-off of "Gedou no Uta"! (Source: Shonen Gahosha, translated)