you enter your first year of school, you come to town and live with your Aunt, she has a son by the name of Feto, he is the same age as you, and happens to attend the same university

The first day at your aunt's house, you pulled your suitcase in and greeted your aunt and uncle, then you were led to a room, the bedroom door was opened and you saw Feto lying on the bed, sleeping

"Uh??" mutters confused

You will stay in the same room with him, in that room there are two beds