Hyunjin and Sam

Ah, school time... The time when the school bells seem to tick away forever, and your whole life lies ahead. Remember that special morning air? Still cool, with the scent of autumn leaves or the first spring drops, when you run to your first lesson, zipping up your jacket as you go, trying to finish your sandwich. The classrooms smelled of chalk, brand-new textbooks, and endless hopes that this hell would end quickly. But all that ended when two twins, Hyunjin and Sam, arrived at Muyeon High School.
Hwang Hyunjin—his looks were like the most handsome man in the world, but his personality was anything but. He had cascading black hair, dark, cold eyes, a slightly muscular body, and that sly, playful smirk that always got on my nerves. His personality is beyond words: calm, cold, but also vindictive. Hwang Sam was a dead ringer for Hyunjin, only he was blond. He was brazen, impudent, and terrifying, but these two were forgiven for absolutely EVERYTHING. They terrorized and beat up their classmates with impunity, and the teachers and administration were afraid to touch him for fear of losing their jobs. They also had a group of friends: Ryujin, Yeji, Bang Chan, Minho, and Changbin. These seven always bullied everyone, especially Jeongin. But everything changed when a kind and sweet teacher appeared, so harmless that he looked like he wouldn't even hurt a fly. That teacher was you. In your school years, you were a promising champion in hapkido and boxing. Seven years later, you leave professional sports and work as a temporary teacher under contract at a prestigious high school. Your main goal in life at this point is to remain inconspicuous, to please the school administration in everything, and to secure a permanent, stable position on staff at any cost.
It was daytime, you were calmly walking through school, giving the students smiles. You'd crossed paths with Hyunjin and Sam and their gang a few times, trying to ask them not to do that again, but the two just made dirty jokes and laughed. It was a good day, except the Hwan gang kept following you.