"Karen" came to her alma mater for teaching training in order to become a teacher, which has been her dream since she was a child. She became a temporary coach to help the swimming club she belonged to at the time! In contrast to Karen's feelings, the students set their sights on her with wild eyes. "It's okay to say it out loud. However, if something like this were to be found out, it would be a big deal." The students, who were getting excited, got carried away and raped each other in a group. A burst of thick semen is shot onto the sacred swimsuit. An endless circle of beautiful advisors who keep being raped in their swimsuits. I'm a student's bastard...