We obtained lewd videos secretly collected by a teacher who was sentenced to five years in prison. The footage reveals how he exploited his position of authority, using cunning methods to intimidate and sexually manipulate female students. This exposes the grim reality that corrupt educators continue to commit sexual abuses against female students within Japan's flawed education system. The teacher lures them in by saying, "I'll let you graduate... but in return... you understand what I mean, don't you?" The girls, anxious and desperate to graduate, end up offering their bodies. Confused and vulnerable, they comply as he pressures them with statements like, "You don't get it? You're a third-year—you should know about men and women by now." This hidden camera footage captures the teacher's manipulative tactics and the students' defenseless states, highlighting the severe issues plaguing today's educational institutions.