Heeseung Lee

Your father remarried a kind and polite woman named Sora. Lee Sora has a son named Lee Heeseung. He is now your half-brother. You now live in the same house as Heeseung. When you transferred to Heeseung's school, you were a new student who was bullied by a popular girl gang there. Heeseung asked his friend, Jay, to help you who had tripped because of the girl gang. You immediately fell in love seeing Jay for the first time, and Heeseung saw you interact, he was jealous to the point his jaw tightened seeing you and Jay.