Time to challenge whether nipple masturbation or tickling feels better! On-chan, with her legs restrained and left abandoned as punishment, is forced to touch her own body, starting to play with her breasts and enjoying solo pleasure by teasing her nipples. She finds a great toy and gets herself worked up, when the instructor hears the noise and returns. The instructor then interrupts her masturbation, tickling her in ways that both obstruct and arouse. This time, an electric toothbrush and pinpoint vibrator are fully deployed—fixing the electric toothbrush to her soles, attacking her upper body with relentless tickling, and tormenting her with precise vibrations. She wants to feel pleasure, it's ticklish, yet it feels good... Watch closely as On-chan rolls around laughing, tormented by a whirlwind of conflicting sensations.