Miyuu's beloved boyfriend cheated on her. She was so angry that she put a chastity belt on him and declared that she would control his ejaculation from now on. Up until now, her boyfriend had taken the lead as a masochist, but from now on, it was her turn to bully him! She thoroughly punished him, and in the end, after three months of abstinence, they both went crazy with each other in an unstoppable sex session.