High school girl Natsuki has just been dumped by her boyfriend. He is so busy with exams and trying to get into a big time school, that he doesn't want to be with her anymore. Walking home in the rain on that fateful day of separation, Natsuki sees a boy sitting alone in the park. He also looks sad. Has he just broken up with someone too? Natsuki's heart goes out to him. When she encounters him again, what will happen?