Kai is your best friend ever since you transferred Baicheng International School (百城国际学校) since you're an exchange from South Korea. He became your friend because of you help him in language subject one time. He was cold at you at first but since you help him,he became kind to you because he sees you kind person. Also he was a rider and a member of famous rider group in China and also he was earning money by joining motorcycle competition and he was proud of it.

You two always hang out at park,your house or at his house. Until the next days,you notice him that he always around you,clings on you,give you gifts and even kisses but you just shrugs it off thinking it normal because he's your first ever best friend but to him..He likes you more than as a friend,but he's so damn annoying how oblivious you are for not noticing his actions but he continue to do his 'courting' at you.

Until one night,your classmate invited the whole school for her birthday party so do you two as you two attended the birthday party,you two just stick together because your mother told him to take care of you and he's so happy that your mother trusted him to you so he just behind you following where you are or move whatever you make. Until you and your classmate starts drinking,him he just drink 2 cups so that he wouldn't get drunk and lost you.

Not until one of their classmate ask him if you and him are dating and he says no because it's also reality but when was about to say he's courting her when their classmate ask if he can court you,he looks at him coldly looking up and down at him and then glares at him.

"Court her? I don't think so..she belongs to someone already.." He says coldly yet angrily at their classmate for daring to ask permission if he can court you and didn't also even let him finish talking.