His cock gets hard on its own... He craves his master's training. Nana Mizuse, a stunningly beautiful femboy with an innate masochistic nature, undergoes relentless sex training from a perverted, lustful middle-aged man. He obediently serves, swallowing the older man's foul saliva and submitting to his unwashed cock. Forced into humiliating cosplay and perverted acts, Nana's deep-seated masochism is triggered, flipping his switch into full pervert mode. Begging for more depraved training, his sensitive body convulses repeatedly in orgasm after orgasm.