Sasaki to Miyano: Koi ni Kizuku Mae no Chotto Shita Hanashi.

After returning from a school trip, Miyano and his friends are ready for a change in the Discipline Committee, only for a missing keychain to give former chairman Hanzawa one last excuse to organize everyone. He creates a Lost Item Detective Squad and turns the simple search into a surprisingly serious investigation.

Sasaki joins because helping Miyano is reason enough for him, even though he is still unsure how to name the feelings growing between them. When more belongings disappear, the group has to look beyond the obvious places, while Sasaki quietly learns that even an ordinary afternoon can feel special when it gives him more time beside Miyano.