A kid with no formal training walks into a kitchen competition and wins by caring more about his food than his opponent's credentials. Every match isn't about technique, it's about Yoichi refusing to serve anything less than what the person in front of him deserves. Ninety-nine episodes of watching someone turn that obsession into a philosophy that beats every chef who forgot why they started cooking in the first place.

Yoichi Ajiyoshi is a gifted young cook who runs an eating house together with his mother. Everything changes when Genjiro Murata stops by and is amazed by the flavor and careful skill in the katsu-don Yoichi serves him. Yoichi is soon invited to the Aji-oh Building, where he faces the in-house Italian chef, Marui, in a spaghetti match. His inventive ideas and his drive to give guests the very best carry him to victory. From there, Yoichi takes on a string of rivals, each contest a chase after the finest flavors and dishes. The long-running TV series mixes comedy with drama around its cooking duels.