There was a complaint from a woman, and on the principal's PC, there were densely packed video files showing him engaging in sexual acts with PTA officers and female teachers. The principal often called teachers and PTA officers to his office under the guise of meetings and consultations. There, the tea he served was mixed with a powerful sleeping drug, and it is said that the principal engaged in shameless acts with the women in his office, which is next to the staff room.