The bond between them has deepened, but when Kurihara-san accidentally confesses that she collects Momo-kun`s used products, she worries that he might not like her anymore. However, Momo-kun invites Kurihara-san to the game center, where he acts differently towards her than normal... Momo-kun eats a lunch made by Kurihara-san. Though the side dishes are all his favorite foods, he finds it strange when can`t recall telling Kurihara-san about them. Kurihara-san has been researching Momo-kun, and behind her research on Momo-kun is a secret collaborator!