My Petite Girlfriend Is My Dad’s Sex Slave - Graduation Arc

Mayu is a high school girl who finds herself entangled in a secret and dangerous relationship with her boyfriend's father. Despite being in a seemingly normal relationship with her sweetheart, she cannot resist the older man's advances. He calls her whenever he pleases, whether she is studying for exams or spending time with her boyfriend. Their encounters become increasingly frequent and reckless, pushing the boundaries of secrecy. As the situation escalates, Mayu struggles to maintain the facade of a normal life while satisfying her hidden desires. Her boyfriend begins to notice the changes in her behavior, growing more suspicious with each passing day. The tension builds as Mayu must choose between the safety of her relationship and the thrill of her forbidden affair. With every secret meeting, the risk of discovery looms larger, threatening to destroy everything she has built.