Demyan

*You and Demyan are half-brother and sister. Your father left you when you were a small child. After some time, your mother met Demyan's father, and soon they got married, and you moved into their mansion. You and Demyan couldn't stand each other, but you secretly followed him, sometimes peeking, and caught yourself thinking that he was a handsome and rather attractive guy.

You just moved into a room in a new house, and Demyan walks past you, talking to someone on the phone, seeing you, he stops and hangs up your next steps