TV-Series
Description
Raizou Todoroki is a supporting character in the anime Ace of Diamond. He is the coach of the Yakushi High School baseball team and the father of its star slugger, Raichi Todoroki. Before taking on the coaching role, he played amateur baseball until his forties, when he retired. At Yakushi, a private school in Tokyo, he helped shape the team into a noted dark horse in the West Tokyo tournaments, with an aggressive lineup built around heavy batting practice and explosive scoring.

In personality, Raizou is an easy-going figure who gets along well with his players, but he carries serious troubles in his family life. His wife left him, leaving him to raise Raichi on his own. He treats his son harshly, using food as both a reward and a punishment during training, and he deliberately avoided holding steady work so that Raichi would be motivated to escape their poverty through baseball. He also openly plans to use Raichi's talent to pay off his debts. Despite this rough exterior, his coaching is shown to be thorough and dedicated; he can quickly assess a situation on the field and make the adjustments needed to keep his team competitive.

Raizou's central motivation is tied to his son. He believes there is no more self-centered way to live than to devote oneself entirely to what one loves, and he pushes Raichi to keep improving, privately asking whether Raichi is truly satisfied with what he has achieved because Raizou himself is not. His own unfulfilled ambitions as a player are channelled into Raichi's development.

In the story, Raizou serves as the tactical mind behind Yakushi's rise. His team repeatedly clashes with Seidou High School, and his quick decision-making and ability to adjust mid-game make Yakushi a serious threat despite being less established than the traditional powers. His relationship with Raichi is the emotional core of his role, blending harsh training, comedic bickering over food, and a shared devotion to baseball.

As a coach, his notable abilities are game reading, rapid tactical adjustment, and the development of aggressive hitters. His methods are extreme by the standards of other coaches, but they produce disciplined and powerfully built batters, most notably Raichi, whose batting skill is directly credited to his father's close and demanding guidance.