Kakeru asks Naho to walk home together after school, and Naho continues to notice the increasing discrepancies between the letter and her current world, since her past-self walked back on the same day with the whole group, while she is now alone with Kakeru. Kakeru wants to see the park close to Naho's home so she takes him there, and Kakeru uses this opportunity to give Naho a hairpin as thanks for the lunches she made for him...