An affluent medical professor, Komiya, and his bossy wife, Tokio, are to look after Setsuko, their high-spirited niece from Osaka. Setsuko is a liberated woman who does what she wants, including smoking, even though she is a minor. On Saturday, the professor does not feel like going to his weekend golf game, but his wife packs him off anyway. So he leaves his bag at the apartment of his student Okada, and goes to a bar with a friend. Setsuko traces him there, and insists that he take her to a geisha house. When she gets rather tipsy, the professor calls Okada to take her home, while he sleeps at Okada's. The wife becomes suspicious of Setsuko when she sees Okada bringing her home, and also of her husband when she discovers that he did not go golfing.
因偶然事件为契机与世界第一的英雄欧尔麦特相遇的“无个性”少年绿谷出久,身体内继承了欧尔麦特的个性,具有了成为英雄的资质。在经过严厉的训练后,绿谷出久成功进入了雄英高中入学,在与爆豪胜己、丽日御茶子等英雄科1年A班的同学们一起在互相切磋和学习中度过每一天。在这种情况下,全国瞩目的活动“雄英高中体育祭”来临了。目指第一的爆豪胜己,因为家族原因具有强烈意志的饭田天哉,为了否定父亲而渴求胜利的轰焦冻,以及英雄科1年B班的成员...。雄英高中所有同学都气志高涨,绿谷出久也重新下定了决心。“我也会全力去比赛的!“ 以最顶级的英雄为目标的学生们,“个性”、力量和自尊的战斗拉开了序幕!!