Bisang! Cheongchungirokbu

Lee Cheong-Yeon, who boasts of being the top student in the entire school with perfect grades, school records, and class activities, has one flaw. That is his broken personality, character, consideration, sharing, and respect for others... Wait, isn't that one thing? Lee Cheong-Yeon, who can no longer ignore character assessments for the sake of college entrance exams, is given the outrageous task of rehabilitating Kim Soo-Han, the problem child and last in the entire school with zero points... Will these two be okay?
(Source: Lezhin, translated)