In 2002, Kanashi Tsukumo, a promising second-year high school student, is devastated when he is wrongfully accused of murdering his mother and girlfriend. The true culprits, a notorious mafia famiglia that rules Japan's underground world, have orchestrated the perfect frame-up. Stripped of his innocence and consumed by a relentless thirst for justice, Kanashi embarks on a perilous journey of retribution. Driven by vengeance and an unyielding will, Kanashi transforms into what he despises most. As he navigates the treacherous criminal underworld, he grapples with the harsh realities of his unwanted fate. Along the way, he confronts dangerous enemies, forms unexpected alliances, and battles with the shadows of his own humanity.

This is the story of a man's transformation, resilience, and the dark paths one may tread in the relentless pursuit of justice and redemption.