Manabu Toujou is hurled into the depths of hell by a crime he did not commit. Branded a murderer for a killing he has no memory of, he is thrown into prison. To make things worse, his parents—who desperately believed in his innocence and fought to clear his name—are murdered by the mastermind behind the case through a cruel scheme. On the brink of despair, Manabu embraces a “madness” necessary to survive. He refuses to cower before the brutal bullying behind bars and fights back with ruthless determination, eventually becoming a figure feared by everyone in the prison. Then, he breaks out. After a life‑risking escape, Manabu begins to investigate the truth behind his parents’ deaths and the full picture of the false accusation that destroyed his life. Who was the real killer in that murder case? And can Manabu complete his revenge, even if it costs him his own life…?