One day, Ichika, a female student I teach, jokingly promises me, "I want you to help me with my studies next time, so can I come to your house?" Ichika suddenly comes to visit me at home. She tempts me with the devil's temptation, saying, "Teacher... have you ever had sex with a young girl...? It feels so good..." The more I try to blame her with my reason, the more I get addicted to her, and our forbidden relationship becomes even deeper...