One day after school. The sky is painted in a beautiful sunset. Kaoruko, Subaru, and Sakura from Kikyo have come to the city library. After setting down their bags, Kaoruko starts studying. Subaru realized she forgot something and headed back to Kikyo. Sakura disappeared into the back of the library to find a book she wanted to read. Kaoruko is studying diligently by herself. At that moment, she runs into Rintaro, Shohei, Saku, and Ayato from Chidori.