A baby left on a doorstep by an oni comes back as a teenager who has to fight his way through fifteen years of a debt he never agreed to pay. The OVA doesn't waste time explaining why demons want him or what he's supposed to become; it just throws him into combat across time and dimensions while his parents sit at home, completely helpless. By the end, Jiro stops running from his destiny and becomes the very thing he spent four episodes refusing to acknowledge, and the show treats that transformation like a betrayal of everything that made him worth saving in the first place.
Jiro's life shatters on his fifteenth birthday when a towering oni arrives to collect on a debt made before he was born. The creature claims Jiro as its own, revealing a dark inheritance the boy never knew existed. Now caught between two worlds, Jiro must survive relentless attacks from supernatural forces bent on capturing or killing him, all while trying to keep his family and the girl he loves safe from becoming collateral damage. What begins as a desperate fight for survival quickly spirals into something far larger. Ancient powers stir, reality bends, and Jiro discovers he's not just a target but a vessel for something legendary. His only path forward demands traveling through fractured timelines and alien dimensions, each revealing fragments of who he truly is. The action is brutal and unforgiving, the atmosphere thick with dread and cosmic wrongness. This late-80s OVA blends visceral horror with trippy science fiction, creating something that feels both grounded and deeply strange. It's for viewers who want their supernatural action tinged with existential terror.