Heizou isn't a hero who decided to be good, he's a man who decided cruelty was cheaper than mercy, and that decision cost him everything that made him human. The OVA builds him through the people who loved him anyway, each story another scar you can't unsee. This is how legends are actually made in the real world: not through triumph, but through the exact moment someone stops being able to go back.
In the bustling streets of Edo, a young man seeks out the legend behind a name that makes criminals tremble: Heizou Hasegawa, the "Demonic Constable." Rather than approach the man directly, he collects fragments of his story from those closest to him. Kumehachi, Hikojuu, Omasa,each person who knows Heizou carries a piece of his past, a moment that shaped the iron-willed lawman he became. Through their recollections, a portrait emerges of an ordinary man who chose an extraordinary path, trading comfort for duty in a city where crime runs as deep as the Sumida River. The young man discovers how raw determination and an unshakeable moral code transformed an outsider into the most feared figure in the criminal underworld. This single episode peels back layers of myth to reveal the person beneath the fearsome reputation, offering a glimpse into what drives someone to stand alone against an endless tide of vice and corruption.