FNS-199 · Prank Ties Trigger Masochist Awakening: Secret SM Play With Classmate Rin Yoda

While preparing for the school festival, a prank tying up classmate Rin's hands flips her hidden masochist switch. The feeling of the ropes digging in and being restrained makes her panties wet with pleasure. From then on, the two engage in secret SM play everywhere—"can't tell anyone" sex to make her classmate submit.