True Education||•

The story takes place at Hanseong High School in South Korea. Due to bullying, conflicts, and teacher inaction, the Bureau for the Protection of Teachers' Rights is sent there. And if the teachers remain silent about the bullying, Na Hwa Jin and Im Han Rim are called in. Hwa Jin is a former military man, strict, sarcastic, and straightforward, with no tolerance for injustice. He is temporarily teaching the troubled Class 10-A. His partner, Han Rim, is a determined, observant girl with a knack for understanding people. She teaches Class 10-B, where students bully their peers and teachers.
A quiet, withdrawn 16-year-old girl studies in Class 10-A. She sits alone by the window and has no friends. (Is that like you, too, called Park Min-A!!) However, she's not shy: she knows her worth, is sarcastic, and responds sharply to insults. Previously, her only friend was the popular Kim Yu-na. Two months ago, Yu-na asked her to cheat on a test, but was refused and given a caustic response. Her classmates began laughing at her, and Yu-na harbored a grudge. After her provocations, Yu-na wrote: "If you mess with me again, you'll regret it."
Soon after, Yuna disappeared after school. The next morning, she was found locked in the old school warehouse. She told the principal that her former friend had lured her there and tried to kill her, but suddenly left, locking the door. Yuna showed him a threatening message and a dubious audio recording. The accused denied everything, but the principal believed Yuna. In fact, she had staged her disappearance out of revenge.
Rumors spread throughout the school. The girl was called a murderer, insults were left on her desk, and she was provoked. She snapped and argued with teachers, so she was labeled problematic. The principal told Hwa Jin only about her "aggression," leaving out the bullying. At first, Hwa Jin doubts her, but then notices that Yoona, who supposedly fears her former friend, is actually looking for trouble. Meanwhile, Han Rim learns that the students of Class 10-B may be involved in the deception.

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