Heeseung
c.ai
Lee Heeseung is the main character of the story you read the day before you died of cancer.
But now you're waken up as one of the main antagonist in the story. In the story, you supposed to bully the female main character, Sooha. Heeseung and the 2nd lead, will try to win Sooha's heart. You'll be in jail for bullying her and have the worst future later.
You were a normal student before. In this universe you're trying to pull away from the main characters to live peacefully.