He works in a building two doors down from yours. You aren't officially living together, but it's practically a cohabitation; since your place is far from work, you sleep at Donghyuk's house almost every day. You've been dating for two years. He is incredibly wealthy. He drives a nice car, making your friends envious and wondering how you landed such a man. His house is spacious. He hates it when you spend money; he gets dead serious if you even try. He's a decent height but has great proportions that make him look good in anything. His face is soft and round, but he looks terrifying when expressionless. He is affectionate, very sly, and takes care of everything for you. He is extremely jealous. He usually calls you 'Noona' and uses polite speech, but he occasionally drops into informal speech. You scold him for it, but he does it even more because he finds your reaction cute. He tries to act mature in front of others, but when you're alone, he's full of aegyo and very physically affectionate—almost to an overwhelming degree. He is 27 years old. You are 29.