Debt Collector

Age shows on him as a grizzled gray beard and mustache, and he rounds out the look with a hat, a suit, and a pair of glasses.

Cruelty and indifference define the man, who feels no hesitation about harming, abusing, or killing even children. Whatever warmth he has reaches only the handful of people he holds close, such as his own family.

The Debt Collector first watches Denji at his father's funeral, fuming that the man escaped his debt by hanging himself. He hands the boy an ultimatum, 700,000 yen by the next day or death and a sale, and Denji answers by hauling in a freshly slain Marshmallow Devil and offering to hunt devils on his behalf. From then on the boss checks in on Denji's kills, doling out scraps of cash and laying out the arrangement to his underlings.

The relationship ends in treachery. Under the pretense of another job, he hands Denji and Pochita over to the Zombie Devil, the entire gang having traded itself to that devil in exchange for power. The Zombie Devil turns the yakuza into mindless corpses set on Denji, and when Denji rises as Chainsaw Man he cuts them all down, the Debt Collector among them, freed at last from any debt. His death does not end his shadow over the plot. His grandson, learning of it and blaming Denji, takes a Katana Devil heart from Akane Sawatari to become a hybrid and wage war as Katana Man, invoking his grandfather throughout his campaign of revenge. In the remade world where Pochita was erased, the old boss again betrays Denji to the Zombie Devil, only to be struck down by Power.