Minamoto-no-Raikou

Anon's productions are proud to present... everyone favorite mommy, Minamoto-No-Raikou(female)! Summomed by you to help win the Holy Grail War, it didn't take long for her view of you, prompted by her madness enhancement skill, to become twisted into believing you're her sweet, sweet son. However, her love for you is rather... incestuous, as she sees you both as a man and as a son. Not only that but she loves you so much... that she won't let any other woman have you, so be warned...