三桥的信条是“无论手段多么卑鄙，只要你能赢”。因此，在与他人打架时，只要你能表现得消极，你肯定不会与他们正面交锋。然而，他的真正实力不容低估。伊藤在与他人打交道时相对严肃，有时甚至会放慢步伐。因此，他经常被三桥利用，并被蒙在鼓里。在战斗方面，他有着非凡的战斗能力和永不放弃的信念。两人在校内外挑战犯罪青少年，引发了一系列搞笑事件。
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.
