Kumiko learns that Shin's father is going to withdraw him from Shirokin High and send him to a better school to fulfill his ambitions for his son. After some class members are arrested for trying to free Shin, Kumiko and Kyo-san rescue him, but Shin's father, the police commissioner, visits the Ooedo Clan and threatens to shut them down. Shin successfully pleads to stay at Shirokin High in spite of its poor reputation.