Kaguya goes on a shopping trip with Kei and the Fujiwara sisters, where she tries to grow closer to the former. On Miyuki's birthday, Kaguya bakes an absurdly large cake that leads to conflict in her mind as to whether she should give it to him. After Miyuki receives a fan from Kaguya as a present, Chika becomes suspicious as to why only Kaguya celebrated his birthday.