Many students at school start to wear a cat badge but Kumiko discovers that they buying them for 10,000 yen to avoid being beaten up. Shin offers to help find the culprits, but when they find them, Kumiko is overpowered when Shin is taken hostage. Fortunately, some of the Ooedo group come to the rescue, however Shin is shamed by the episode and the next day he is absent from school.