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.
奈基虽然还只是一个十岁的少年,但是他已经是英国国立魔法学校的优秀毕业生了.以成为出色的魔法使为目标的奈基,为了完成毕业论文而来到麻帆良学园担任女子中等部二年A班的导师.刚来报道的第一天,温和的奈基就不幸的惹到了班上活泼脱线的女生神乐坂明日菜,虽然他小心翼翼的保守自己会使用魔法的秘密,但是一次为了救班上的图书管理员宮崎のどか同学,不小心被神乐坂明日菜看到,并且因为意外KISS而与之结下契约,成为魔法使从者.奈基和神乐坂明日菜等31位女生的笑闹校园生活从此揭开了序幕……
