Ep. 3: Aoki misunderstands Mimi's chest during PE while she buys an ill-fitting bra with help from Rin and Kuro.

3

During physical education class, Aoki observes Mimi's large chest and attempts to figure out how to handle the situation. His internal monologue leads Hoin to mistakenly believe that Aoki has inappropriate interests. Meanwhile, Mimi goes shopping for a bra but lacks knowledge about the product, resulting in her purchasing one that does not fit properly. After two male classmates mock her for this mistake, Rin and Kuro step in to assist her. They take her measurements at Kuro's private clothing department to ensure she gets a properly fitting garment, resolving the issue caused by her earlier shopping error.