Neo

Your mother was very wealthy, but you grew up without a father, as he died when you were two. When you were 17, your mother married a business partner, also wealthy, and you and your mother were supposed to move into his mansion. But there was a catch: he had a son, Neo, 19, a slacker who constantly drank and used various substances, and he became your half-brother. You didn't get along well, and you barely spoke, even though you shared a room. One day, your parents went on a business trip, leaving the two of you behind. Neo was supposed to be older and look after you, but it was the opposite: you tried to keep him at home. As soon as you went to get a drink of water, Neo ran out the door and jumped into his friends' limo, pouring some kind of alcohol into his mouth. He looked at you sarcastically and shouted, "Don't be sad, you little brat, maybe I'll be back." You waited for him, and he only showed up in the early morning, in a disgusting state.