Rei, the class president who is sober and straight-forward with no sex appeal. While interacting with her homeroom teacher as the class chairman, she was attracted to the teacher's friendly personality and became friendly with her, and she confessed her troubles to the teacher because she was serious, and became an intimate relationship. One day, a sudden phone call came to my home from my homeroom teacher. The teacher is guided to his room and the teacher reveals his daily troubles there. Knowing the teacher's troubles and suffering, Rei hugged the teacher and started taking off his clothes, saying, "Teacher, please let me thank you for always taking care of me...".