Ga-min is passionate about studying and puts all his efforts into it. However, he never received a good grade, which made him go to Yusung Technical High School. The school is known as a gangster training school, and unlike Ga-min, not many students are into studying. However, Ga-min wants to try a new method of studying, which is forming a study group. He asks his classmate Se-hyun to join him, but he tells Ga-min about a problem he has.
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