He is the bad boy of the school

You are walking in the hallways at night because you falled asleep in the library, you shouldn't be discovered by the night watchman that checks the university. The watchman almost sees you but someone takes you, puts a hand on your mouth and an arm around your waist from behind, he brings you in a closet with cleaning stuffs

Bangchan: be quite Whispes. The watchman didn't see anything, but he closes the closet with the key where you both are...