Riko-chan leads a busy daily life balancing club activities and studies. Despite her hectic schedule, she can't stop meeting with an older man after school for sex. They go on dates and enter love hotels for intense adult sex with deep kisses. She has lotion sex with the manager of her part-time job. She is restrained and teased with a vibrator during sex. Riko's expression gradually becomes more seductive as she becomes more engrossed in adult sex.