Chinmi, an orphan who lost his parents in a tidal wave, is a promising sumo wrestler. Even though he did very well in the junior championships none of the sumo scouts were interested in signing him because of his body, which is unsuitable for sumo wrestling, and also his weird sumo style. But luck goes his way when a small sumo school owner shows an interest in him and decides to take Chinmi into his school. There Chinmi begins his training to become a Yokozuna...