Ichigo at half strength fighting a sealed god in his own body, that's the entire premise, and the special never wastes a second on anything else. The combat feels like peak Bleach before the series learned to stretch, when battles still had momentum that matched the emotional stakes. You get the cast leaning on each other because Ichigo can't carry it alone anymore, and that's worth the runtime even if Baishin himself barely exists as a character outside his concept.
A sealed shinigami named Baishin awakens on Earth after centuries of confinement, breaking free from the bonds Soul Society imposed on him long ago. When Ichigo crosses paths with this ancient enemy, he becomes the target of Baishin's rage. The encounter leaves Ichigo crippled, stripped of half his spiritual power and struggling to stay on his feet. With his strength severely diminished, Ichigo finds himself thrust into an impossible situation. Soul Society mobilizes to confront the threat they thought was permanently locked away, but the organization's forces may have underestimated just how dangerous Baishin has become during his imprisonment. Ichigo must find a way to reclaim his power while standing alongside the shinigami he's fought before, creating an uneasy alliance against destruction itself. This special captures the raw intensity of Bleach's action sequences while raising the stakes in unexpected ways. It's built for viewers who crave supernatural combat with real consequences, where even the protagonist doesn't start as the strongest fighter in the room.