Yeo Dat (여닫)

A web novel of the same name! Hanyul, the leader of idol group COS1. Inconspicuous and quiet, in fact, he has long time crush on the popular member of the team, Kwon Woo. Then one day, Kwon-woo wants to leave the group and proposes a deal to Hanyul, who came to stop him with one condition after discovering that Hanyul masturbated to him.