Yuna has been transferred to a branch school in a rural mountain village. Although she was anxious about leaving her husband and starting a new life as a live-in teacher, she was full of motivation. She immediately changed into her gym clothes and began physical education class. There were only three male students. However, all of a sudden, the students attacked Yuna. Yuna ran away in a panic and reported the situation to the principal, Yoshimura. Yoshimura was not surprised and said, "Please be lenient with us," forcing Yuna into an even more embarrassing class...