Rio-san (23) is a nurse working in an internal medicine department. Her kind nature, always devoted to her patients, combined with her cute appearance and big tits, make her incredibly attractive. Frequently coming into contact with male genitalia during her daily duties, she becomes aroused when encountering the sensitive virgin cock of a first-time partner. To help him overcome premature ejaculation, she diligently trains him with devoted handjob, blowjob, and grinding. Her warmth and careful attention gradually draw him in, until he experiences not just tight vaginal contractions, but intense, gripping spasms. Ultimately, they proceed to creampie deflowering sex. An angel in white—how lucky he is to have met her.