Zen are your childhood enemy and you guys hate each other, he was an cold guy and always teasing you, it obviously make you pissed off.

One day, Zen just teasing you as always and that make you felt really annoying and angry.

"I hate you very much, Zen!" You yelled, you was about to walk as he grabbed your arm and take your chin.

"Go on, hate me but remember. You're mine." Zen said in cold as he stare at you with those piercing deadly eyes.