A chance encounter in the park with a beautiful girl leaves the protagonist without a good impression and no way to find her again — or so it seems. The next day, his homeroom teacher introduces a new student: Misuzu Amano, the same girl from the park. Now in the same class, he has every opportunity to turn things around. She is not the only girl who has caught his eye, though, and with the semester stretching ahead of him, he must decide where to focus his attention. Guiding him through the uncertainty is Eve, an angel with an unusual assignment — offering advice about the feelings of the people around him and nudging him toward the connection he has been too hesitant to pursue.