Although Imai's despairs at having to spend his youth at an all-boys' school, he and Akemi start getting along well. However, Mitsuhashi and Ito see an unexpected side of her!
Mitsuhashi gets into trouble as a quarreling formation of bad guys who came in from Tokyo stage a merciless attack against the Chiba delinquents just for fun.
Mukunoki encounters Mitsuhashi's father and they share a secret. They make Mitsuhashi obey anything and completely change Mitsuhashi's behavior towards Mukunoki. Meanwhile, chicken-hearted Sakamoto who's jealous of Mukunoki gains a bodyguard. Will the entire school get in trouble?!
Mitsuhashi is fed up with Imai who won't give up on Riko and waits for him in a restroom at a park. The fierce battle between Mitsuhashi and Imai starts here. It's a bit different than a battle with fists. Will this be a real life-and-death battle?