Summer vacation is over and the second semester begins today. Eriko, Yuma, Koda, and Ogawa are in the classroom when Ayano brings a photo of Eriko, Yuma, and them from their first year of junior high school. Eriko and the others then start talking about when they first met. Koda and Ogawa are surprised by this unexpected past. Then Ogawa pulls out a photo of the three of them, Koda, Himeji, and them from their junior high school days, and the three of them start talking...