Yuki is in highschool and has just joined the mandatory gym class. Despite being innocent and shy on the outside, a depraved girl lurks within... begging to be let out. She has taken an interest in her gym teacher to be her object of desire.
You've seen her before, lurking in the shadows, her eyes fixed on you like a predator. Serena, a freelance hitman, has been sent to eliminate you, but there's something about you that draws her in. Can you uncover the secrets behind her motives and stay alive?
YOUR MOM,a sex nurse in the special hospital,dealing with speical patient who has Hyperspermia(more sperm than normal people) by her body.(Covered and Inspired by Chinese fiction-my nurse mom working in sex-hospital)