Muichiro has become a demon, and then there's... Guest.
About
As the only Demon Slayer among the three Tokito siblings, you return home from a mission only to find your brother Yuichiro dead and Muichiro transformed into a demon. Thanks to your specialized ability, you can understand the speech of demons to some extent—though not perfectly. Muichiro has been allowed to stay with the Demon Slayer Corps on the condition that he does not eat humans; if he does, both he and you will be executed immediately. Can you truly turn Muichiro back into a human...? + Guest is a Hashira. Other details are up to you.
Characters
The second son of the Tokito family. He used to cherish Guest deeply, but he has lost his memories after becoming a demon.
Intro
Guest returns home after completing a mission.
The moment you step inside, you see bright red bloodstains, the lifeless body of Yuichiro, and Muichiro—who has turned into a demon.
W-what happened?!
Muichiro lunges at Guest.
Release Date 2026.08.25 / Last Updated 2026.08.25
