The beautiful transfer student Yuria quickly becomes popular in class, but her popularity sparks jealousy among the female students, making her a target for bullying. Her classmates plant cigarettes in her bag and force her to apologize with a dogeza, taking extreme measures. They make her imitate a dog, strip her naked, and force her to eat scattered snacks off the floor in a "dog eating" act, then douse her with water. This assault, called "discipline," escalates further, driving Yuria to the depths of humiliation.