Today, I also went on a date with my older "girlfriend" after school on campus. (Ozawa Naho DLDSS-533)

"I have a secret I can't tell anyone—." Shin transfers to the class where Naho is his tutor. With exams approaching, Naho starts tutoring Shin, and their relationship deepens. One evening, Shin overhears Naho arguing with her husband on the phone outside the faculty office. To encourage her, Shin invites her to karaoke. Then, on the way home, Shin confesses, "I like you"... Touched by Shin's straightforward feelings, Naho accepts this forbidden relationship. From then on, Naho becomes his older girlfriend, and the two begin their sweet after-school dates on campus...