One day, a son finds a flashy bodycon dress hidden in his mother Chisato's dresser. When he questions her, she reveals that she still wears it secretly and enjoys reminiscing about their youth together... Her son is shocked and can't imagine seeing his mother in a bodycon dress, so Chisato decides to show him a sexy side of herself that she would never normally show... But her voluptuous, seductive appearance is far beyond his imagination, and her son can't help but get hard between his legs.