A sadistic female student plots to turn her teacher into her personal servant and sets an elaborate trap to achieve her goal. While preparing for the school festival, she climbs onto a chair, arranging decorations and eagerly waiting for the teacher to arrive. As expected, when the teacher appears, she forcefully pins him down, deliberately acting in a way that exposes her short school skirt. Unable to resist the temptation, the teacher sneaks a peek—exactly as she planned. She records the entire scene on her smartphone, capturing his weakness. From that day on, the once model student undergoes a dramatic transformation, blackmailing the teacher and treating him like her personal toy. Gradually, the teacher is molded into the perfect masochistic servant, fulfilling her every desire.