Petite, big-breasted Rika Aimi takes on a dream project: spending an entire day giving an adult virgin his first sexual experience. The man contacted the director through social media, and this documentary follows Rika as she patiently relaxes him and introduces him to sex. During cowgirl, her warmth and confidence guide him through an unforgettable first time. She later admits that he was so cute she might get hooked on helping virgins.