Cross Days

Yuuki Ashikaga, a high school freshman, spends time at the library of Sakakino Academy, where he becomes interested in Kotonoha Katsura, a classmate who also visits. Though Kotonoha is already in a relationship, she returns his feelings. The situation becomes more complex when Yuuki's sister, Chie, introduces him to Roka Kitsuregawa, who develops a crush on him. To undermine her competition, Roka falsely claims to be interested in Makoto Itou. Yuuki, recognizing that Makoto is Kotonoha's boyfriend, confronts her about the supposed relationship, leading to unintended consequences.