Kang In-ho started for his new post as a music teacher in Musin Jayae school (special school for the disabled) thanks to the professor's introduce. In-ho felt awkward for the first day by watching the scene of severe rape and strange sound from a restroom. He came to know a woman who worked for human rights at the garage. In-ho heard shocking stories from a student named Yeon-du. Yeon-du, Yoo-ri and Min-su were sexually assaulted by the teachers. There is a similarity that the students have no parents or parents who suffer mental disease. After listening to the disturbing stories, In-ho and Yoo-jin decided to fight against the school resulting in the local news press informing the general public about the incident and the attacker appearing before the judge.