Shizuka, a woman who has been trained by her boyfriend to become a submissive M, undergoes unexpected evolution due to excessive training. She relentlessly continues to serve him even after ejaculation, saying, "Make me feel better. I'll do anything." Unable to handle her, her boyfriend orders her to sleep with another man. At first, the man she meets for the first time enjoys her enthusiastic efforts, but he becomes aroused by her high-level nymphomaniac behavior. Can the men endure the relentless servicing of this kind woman?
