Episode 2: "1st Period - 'Superball' / 2nd Period - 'Dress Up' / 3rd Period - 'Observation Diary' / 4th Period - 'Smile' / 5th Period 'Invitation'"
Ryōta, winning a red superball, has a duel with Kōji to see who can bounce their superball the highest. Later at school, Ryōta, filling his bowl with soup to the brim, accidentally spills milk and soup on Megumi and Yūki. As he heads to going to apoligize to them, he instead finds Natsumi who was stripped for her a change their clothes by the two. At the Yūki's suggestion, Kazumi who at first is noting down in her diary her observations on the growth of a plant, begins to experiment on Ryōta as he sleeps. Having never seen her smile before, Ryōta, Kōji, Tsukasa, and Chika try to get Kazumi to smile through various means. Ryōta dreams that after school ends, he and Chika begin to walk home together for the first time in a while and end up going to her house. There he imagines that she begins making advances on him. When he wakes up, Chika asks him for his old keychain.
