Episode Title:
Jajjimento-chō to banka no omatsuri.
Episode Description:
Hayato accidentally sees Rin topless as they change into yukatas for the summer festival. Rin acts upset during the event, especially when Hayato has been mostly staring at her chest. She later concludes that she isn't bothered when Hayato ogles her, and pulls him aside and has him grope her breasts over her kimono. However, when she unintentionally moans with pleasure, she is embarrassed and angry, and punches Hayato. After they return to the others, Ui gets very jealous.
