In-ho, becomes an art teacher at Ja-ae Academy, a school for deaf children. On his first day, he is shaken by the blatant requests for bribery by the twins who act as the principal and the head of administration respectively and the unwelcoming vibe among the children. Min-su comes late to class, bloodied and bruised, his eyes full of rage. In-ho cannot understand the excessive punishment inflicted on the children by some of the teachers. One night, he discovers Yeon-du being...more

In-ho, becomes an art teacher at Ja-ae Academy, a school for deaf children. On his first day, he is shaken by the blatant requests for bribery by the twins who act as the principal and the head of administration respectively and the unwelcoming vibe among the children. Min-su comes late to class, bloodied and bruised, his eyes full of rage. In-ho cannot understand the excessive punishment inflicted on the children by some of the teachers. One night, he discovers Yeon-du being tortured by the after-school counselor Yoon Ja-ae with a washing machine. Outraged, he takes Yeon-du to the hospital and the doctor tells him that Yeon-du was sexually assaulted. This leads to In-ho's discovery that the principal, the head of administration and other teachers had been abusing some students. Yu-jin visits the district police and education boards to report the crime, but nothing comes of it. Eventually the news media gets involved and the principals face a trial.less