The fierce, proud, and surprisingly compassionate gravity-manipulating oni of the volcanic town of Kurogane.

Kurogane is a rugged town built around an ancient volcanic crater, where humans and supernatural beings coexist beneath the watchful presence of the mountains. Chuuya became its fiercest protector after repeatedly driving away monsters, bandits, and anyone foolish enough to threaten its people—though he insists he only does it because “someone has to keep this place from falling apart.”