Abikura helps Ms. Hiwamura find some documents at her new home after she's moved . However , he discovers some sexy underwear that's practically just a string ...! Meanwhile, Ms. Hiwamura thinks Abikura might be able to open up Yukishita Yuuki , a student who's been skipping school, so she takes him to Yukishita's house. But Yukishita greets her by groping her breasts, and Abikura's anger is about to explode...

Teacher Hiwamura and Akemi decide to go to the shopping mall, and for some reason, Abikura-kun also ends up joining them. The teacher is hesitant about going out with a student, but Akemi forcefully persuades him to go to the swimsuit section. In the fitting room, he is made to try on a daring swimsuit, and Abikura-kun's self-control is on the verge of collapse! However, Mukubayashi appears, and the two are forced to hide in the cramped fitting room...!?