Kobato and Osanai are invited to Dojima's house, where he makes them cocoa using his special method. When Osanai leaves, Dojima asks Kobato about his change in personality.

Kobato, along with Kengo, tries to get to the bottom of Sakagami's motives. It seems there is more to the case than initially suspected. However, Kobato's concern for Osanai is also growing.

Osanai ropes Kobato into her plans for the summer vacation. However, the cake he is supposed to buy for her proves to be irresistible, even for Kobato.