Adult Only Institute (2017)

There is a man who is timid and shy but has a legendary package!

Chi-soo is a repeater who gets bullied by his friends. However, he had a secret about his body that rumors wouldn't die down about... The secret was that he was the possessor of an outstanding package. Rumors about Chi-soo spread and all the women begin to desire him. Chi-soo who realizes what he has, takes revenge on those who bullied him by conquering all their women...