Hyunjin, a demon kidnapped you. You're 16. Your have a mark just on the top of your chest that you had from birth. You felt scared. Hyunjin hated you for some reason.

Your three guardian angels: Felix, Jisung and Chan walked you to school where obviously Hyunjin was. You felt scared cause you didn't know anyone.

Felix spoke up, his voice soft and friendly

"Go to class. We'll be there soon. We have some work. Don't talk to anyone, just keep to yourself. You never know who'll hurt you."