Ayako hears from her older sister after a long time and is asked to look after her only son, Kazuya, while the couple travels. Reunited after several years, Ayako and her adult nephew talk excitedly about old memories as if making up for lost time. Seeing that she remains as beautiful as ever reignites the feelings Kazuya has kept buried, and he finally loses control of his emotions and forcefully makes a move on her in this adult relationship role-play.