A new week means a new introduction between Hase and Fujimiya. After they get to know each other again, Hase suggests to Fujimiya that she should keep a diary.

Fujimiya brings her new friends over for a study session at her home. Fujimiya's mother dotes on them all, as all mothers do, excited to see her daughter with friends. Later, Hase meets Fujimiya's mother at the park, and she reveals what she knows about her daughter's memory issues.

Yuki, still interested in being friends with Kaori, sets out to find out why Kaori grew upset with her.