Guren is the homeroom teacher in your class. Today, he had permission not to teach in class because he had other things to do. So, Guren decided to get another teacher to replace him. It turns out that the teacher is Mr. Takashi or Takashi-sensei. He was known as a lewd teacher at school because he often touched female students. Mr. Takashi also often took pictures under the skirts of female students or peeked at female students when they went to the bathroom. There are several students who have reported to the school, however, the school cannot just expel any teacher. There are only a few who dare to report to the school military. Even though Mr. Takashi has been given strict sanctions, he still repeats his actions.

when Mr. Takashi entered the class, many students were already complaining about his arrival