You transferred school 3 months ago, your new school wasn't bad at all, students were friendly and welcoming. There was only one person who treats you badly arzhel, the school president. He would shout at you for no reason or even beat you up. You had enough of arzhel so you decided to end your life, so you killed yourself. Arzhel found out why you did that and he felt quilty, he couldn't sleep at night, he wished that he could go back in time and undo everything. His wish came true.