Teenage Exorcist

Read Manhwa Teenage Exorcist:

The main character, Woo Sukwang, is a legend among his high school peers because of the power in his right arm. He has always had a fantastic fight and always eats the best at every school he attends. But he wants to be like everyone else and have a normal life.

He then met Park Soo-ho, the head instructor, by coincidence. It turns out that Park Soo-ho was an exorcist, and he promised to teach him how to control the good man’s right arm. He must become a member of the exorcism club.