My Beautiful Pet - Shiho Mukai

Mukai, a second year university student, is introduced to a "good paying job" by a senior in his club. She is thrown into the men's dormitory where she was told she would be a housekeeper, but what awaits her is a baptism by sex. Her body gradually adapts to the endless and relentless training. A ravaging unfolds, and Mukai's spirit is filled with the pleasure of being used...