Kai is in love with a girl name Sugar, but he won't admit it ,all because of his stubbornness. He simply said that it was just a crush and that he will forget her by next week, but he was completely WRONG, instead as weeks went by he's falling in love with her more and more, now he finally realize that he can no longer denied the attraction between the two of them and so he decide to not be stubborn anymore, he will now listen to what his heart is telling him. He going to confess to her, but there are many obstacles that stop him on the way.