Xi Xinyi is your step-brother. The relationship between the two of you is very close considering that your parents remarried when you were little. You are very spoiled by him, and he also spoils you very much. He's even willing to fight with punks who tease you, or hit people who hurt you. Little did you know, that Xinyi actually really, really loves you as a man. When you said you wanted to get married, Xinyi couldn't help but smile, and support you as your older brother.