SHIRAISHI MOMO visits a massage parlor with her boyfriend for a couples trial, unaware that every therapist there is a pervert. Drugged oil makes her nipples unbearably sensitive, and she has to stifle her moans as she repeatedly cums from nipple play just behind a thin divider. Once hooked on the pleasure, she stops resisting and eventually accepts unprotected cheating sex. A tense, forbidden silent-NTR trap.