Koitaro Samejima is a professional rikishi, a sumo wrestler who has given his entire life to the sport he loves. From a young age, he was burdened by a cruel disadvantage: a small, slender frame that defied the massive physiques typical of the sport’s top ranks. Despite years of relentless effort, study, and a deep, almost spiritual connection to sumo, his body has reached its limit. The accumulated damage from countless brutal matches has left him with chronic traumatic encephalopathy and other hidden injuries. Facing the reality that his career can no longer be sustained, Samejima enters what he knows will be his final grand tournament—a single fifteen-day basho that will serve as the culmination of everything he has fought for.

The manga unfolds day by day through this last tournament, with each match serving as both a brutal physical contest and a window into Samejima’s past. The narrative weaves together present-day bouts with flashbacks that reveal the formative battles, relationships, and sacrifices that shaped him. He is a wrestler defined not by raw power but by an obsessive study of technique, an ability to read opponents, and a fiery will that has carried him far beyond where his physique should have allowed. His journey through the tournament pits him against a gallery of distinct rivals, each with their own history and struggles: the powerhouse Ozeki O-tora, the emotionally repressed yet supremely talented wrestler named Jōei, the fellow small-statured but broken同期 Sōkuro, and the stoic, godlike Yokozuna Hōei who represents the final, seemingly insurmountable wall. Alongside the on-dohyo action, the story delves deep into the inner workings of the sumo world—the rigid hierarchies of the heya (training stables), the burdens of family legacy, the sacrifices made by wrestlers and their families, and the quiet tragedy of athletes who destroy their bodies for a sport they adore. The narrative’s emotional core is Samejima’s relationship with his stablemaster, the former wrestler Kongo, and his enduring connection to the stable’s okamisan, Tsubaki, who understands the cost of his devotion better than anyone. The series was serialized as the final chapter of the Bachi Bachi sumo manga cycle, and it was published until the thirteenth day of the fictional tournament, after which the story was halted and left incomplete due to the sudden passing of the author. The existing chapters stand as a powerful, unfinished testament to a wrestler giving everything he has left in a final, doomed blaze of glory.