A teacher who works at a private school and has a fetish for voyeurism secretly recorded videos inside the school. The footage captures his hidden impulses in classrooms after school and in the men's restroom, documented over an extended period. Shot with a high-definition camera, the video quality is extremely clear, capturing subtle facial expressions and movements in detail. The footage, realistically recreating explicit acts within the school building, has drawn significant attention for its intense realism and authenticity.