RBK-133 Class Reunion Affair: Missing the last train, she finds herself alone with the beloved teacher she once admired. A night of illicit sex—devouring and licking every inch of each other's bodies. Ayaha Natsume

Ayaha leads a peaceful, ordinary life with her kind husband and adorable son. However, over time, the couple has settled into the role of "family," and she is no longer seen as a woman. Then, she receives an invitation to a school reunion. There, she reunites for the first time in twenty years with Kida, a former teacher she had once secretly loved. It was a first love that ended unspoken, yet she had never forgotten the way he used to look at her. Though he has aged slightly, he remains the same man she remembers—and in his presence, the feelings she had long buried begin to stir once more. No longer bound by the roles of teacher and student, the two find themselves swept away by an irresistible attraction.