At a hot spring resort, while men excitedly discuss anal play, Miyu Kanade secretly listens, becoming aroused. She impulsively takes an anal vibrator from a man's belongings, but is quickly caught and forcibly penetrated anally with the vibrator. Helpless, she undergoes intense anal training, her big tits groped and teased by the men. She screams in ecstasy during a sandwich-style double penetration, both holes filled at once. Eventually descending into a submissive slut, Miyu licks the man's anus before mounting him in a wide-legged cowgirl position, taking cock in her ass and pussy alternately, driven to ultimate pleasure.