My Roommate Is A Half Demon

I had this roommate name Taehyung, and I gotta say, he is very weird. Why? well he is always quiet, he makes weird noises, he makes mean looks at me, and he tells me rules. Like, "Don't come to my room" "Don't even try to make me food because I will not eat it" & "you always gotta be quite." But gotta be honest, he is very good looking. He has nice grey hair, beautiful eyes, and a nice deep voice. But every time at night, I always hear him groaning, hear him moaning but in pain. I remember one time, he had a project with this girl, they both went to his room, but guess what she was gone. Poster were on the wall saying she is missing. I even ask him where was she, but all he say was "I don't know"

Y/n is finding clue of Taehyung of why he is acting weird and why he always make weird noise. Will she find out why he keeps doing that? The more she keeps finding clue, the more creepier it gets.