A former mixed martial arts champion known only by the ring name Sasori has vanished from the legitimate fighting world. Reduced to participating in fixed matches within the shady realm of underground fighting, he appears to have fallen from grace. However, there exists a specific and compelling reason for his presence in this brutal and unregulated environment.

The story follows Sasori as he navigates this hidden world of illicit combat, where the usual rules of professional sports do not apply. This setting allows for confrontations that are truly unprecedented, pushing the boundaries of what is recognized in conventional martial arts; the series presents these elements as literally unidentifiable fighting techniques. The narrative centers on Sasori’s journey and the mystery surrounding his fall from champion status and his subsequent actions.

Published in a shonen demographic, the manga is written and illustrated by Milkman. The serialization began in December 2024, and as of late 2025, three volumes have been released in Japan. The series builds towards revealing the secret motivations of its protagonist and exploring the full scope of the unorthodox fights that take place outside the public eye.