A married teacher, driven by lust for love, continues an illicit affair with a student, promising "This is the only time!" (Kurokawa Sumire, DASS-103)

Sumire, whose marriage has cooled and who is starving for love, arranges to meet Yamamoto, a student who has been listless lately, in the park. Yamamoto, who is sharing his family troubles that he doesn't want others to know, expresses his sadness at wanting to be loved by his parents, which resonates with Sumire. "A student and a teacher together, what if they get seen? There will be all sorts of trouble, right?" So Sumire takes Yamamoto to a hotel.