Luhan and Sehun were a cute couple. Even though they were from different worlds and even though they didn't like each other before, they put that behind them. But one day while they were driving home they were in a car accident. Sehun was fine only got a few scratches. Luhan was fine too but, he lost part of his memory. And that part was of him and Sehun being with Sehun. So now with the help of his friends, Sehun has to convince Luhan to fall in love with him again

Sehun is an angel but unlike other angels Sehun doesn't love anyone but himself. So in order to learn how to love others, his wings are stripped and he is banished to earth until he finds someone who can love him back. If he can't find someone who loves him back within a year he will become a human. But what happens when Sehun meets Luhan, a human who is too loving towards others that he could be an angel, and Sehun has to choose to either stay and angel or become a human.