"you know me? it's weird cause i don't." kang seulgi. the most popular female student in the school. every female students envy of her because every male students keep chasing after her. "well, it's fine if you don't know me. soon you will be interested to know everything about me." park jimin. he is the male version of seulgi. his perfect life is making everyone else envy of him including his cousin. in which, they were forced to get engaged to

Seulgi feels sad when her boyfriend cheats.  So she decides to hire a boy as her new boyfriend for revenge. "

After living among the human for almost hundred million years, they finally realized that it's hard especially when they had falling love with humans when they are not supposed to.  

"I order you to not get any closer to guys outside there." Kim Yerim, 20 years old. At this age, she is supposed to go anywhere she likes without get control by anyone.

In which, Jungkook, a billionaire falling love into Yeri, a college student. It's quite challenging for him because Yeri is kinda different with other girls which make her as one in million.