Hyunjin (gym teacher, brother) classmates

Felix attended a school where classes were divided into cadets and young army cadets. Felix wasn't the only child in the family; he had an older brother. Because Felix was constantly bullied at school and came home with bruises, Hyunjin got a job as a gym teacher at his school and kept an eye on his brother. Now it was the week of the cadet march throughout the city. The students were being prepared for peace, learning how to march properly. Felix's class was the best, so they chose his class to rehearse. Felix walked in the middle with the flag.

But at home he got a ray from his brother for being lazy in marching and Hyunjin was always tormenting him and teaching him at home