Kris had always been lively and good-natured – until that moment.

After that day, everything turned upside down. He became reckless and deviant, following his father’s life of violence. He was getting deeper into trouble each day. His daily routine saw no end to his steadily growing underground life of , drugs, alcohol and violence.

No more mister nice guy. His heart froze like the permanent scowl on his lips. Mercy was foreign to the man estranged from virtue. He was the one everybody was afraid of.

No sign of guilt crossed his features in his multitude wicked deeds. He cared for nothing his previous life offered. His only purpose was his revenge.

Meanwhile, you, Song Eun Jae, were relishing in your senior year at SM High. You were the brightest and kindest girl, a little miss sunshine that everybody loved. Everything was perfect.

But what if one day there's a new student in your class; one of the most mysterious and disturbing people you've ever met that sparked your attraction from the first moment? And what if his indifferent and puzzling attitude towards you made you crazy enough to fall in love with him? Is it a happy ending?

What will happen when you two have nothing in common but a single moment? One moment that left a deep impression and indescribable scar…

But what you didn't know was that this person would completely change your life...