Just another cliche story about a queenka and her kingka. Nam Eunhee is Woollim Highs sweetheart, who is admired by all of her hoobaes and sunbaes, basically everyone on the campus. Not to forget, she is the younger sister of Infinites grease ball, Nam Woohyun and the model Nam Woobin. Meanwhile, Kim Myungsoo or also known as L is Woollim Highs ice prince basketball all star and the eldest son of the KMS Automobile. Years ago ever since, Myungsoo and Eunhees mom were in college they had promised each other that when if they have children of the opposite sex, their children will be married to one another in order to tie the knot between the Kims and Nams.