Seigo, the son of Ayumi, a friend of his mother who returned to her hometown after 10 years, reminisces about his first love. That night, by chance, Seigo receives an invitation for a kiss from Ayumi, who is drunk and in high spirits… Although hesitant, Seigo cannot calm his excitement over her bold actions. He stealthily peeks into the bathroom and catches Ayumi masturbating. Seigo hurriedly flees the scene, but Ayumi, noticing him, visits his room late at night…
