Monaka Sengoku, who loves sex so much that she transitioned from an idol to an AV actress, was given obscene education! She was immediately tied up and said, "I like this kind of thing..." Is she actually a masochist? In a situation where she couldn't move, she was subjected to relentless pistoning, vibrator fixation with aphrodisiac applied, massive squirt orgasms, and a 3P skewered with aphrodisiac oil... Her idol body, still under development, was thoroughly fucked to orgasm, awakening her strong masochistic tendencies! Her face when drooling and deep-throating... she's a real M!