Classe dos Heróis Fracos 1 Temporada 1 Episódio 1

Si-eun is a model student who is always at the top of his school. Because he only cares about his studies, he has no friends at school. Young-bin, a boy in Si-euns class, is annoyed by Si-euns cynical attitude. On a mock test day, Young-bin decides to use Bum-seok, a new student, to mess with Si-euns test.