The fourth installment of the series. After losing the punishment game in the previous episode, the M man is subjected to an even harsher penalty by Queen Tsuki. The punishment involves repeated handjob sessions with vibration stimulation on his shaft and nipples, constantly brought to the edge without release, culminating in an experiment to see if he can climax solely from ballbusting. Under Queen Tsuki's intense handjob skills and relentless vibrator play, a chain of edging and ball kicks unfolds. Will the M man finally ejaculate from the ballbusting alone, or has Queen Tsuki conditioned him so thoroughly that his orgasm reflex is unconsciously triggered by her kicks? A highly anticipated showdown.