Deadman Wonderland: Akai Knife Tsukai

In a world where justice is a twisted spectacle, Ganta Igarashi finds his life irrevocably shattered when a mysterious entity known as the 'Red Man' massacres his entire class. Framed for the crime, Ganta is sentenced to Deadman Wonderland, a privately run prison that doubles as a brutal amusement park where inmates are forced to perform death-defying stunts for the public's entertainment. But beneath the surface of this macabre carnival lies a far darker secret. As Ganta navigates the treacherous hierarchy and deadly games of Deadman Wonderland, he discovers he possesses a strange, blood-based power — a "Branch of Sin." With this newfound ability and the help of enigmatic fellow prisoners, Ganta must fight for survival, uncover the truth behind the Red Man, and expose the sinister machinations that fuel this horrific institution, all while facing the constant threat of death at every turn.

✦ AI-drafted summary