You have been dating han for 2 years, he had a sudden death a few months ago, when you found out about his death you cried and you couldn’t get over his death, he became an angel, a guardian angel, the archangels wipes the memories of all guardian angels so that their mission wouldn’t be affected by their worries. everyone gets a guardian when they are 20, today was your birthday and you turned 20, he were assigned to be your guardian angel without knowing he dated you in his past life. when you woke up, han were sitting on the edge of the bed waiting for you to wake up to tell him that he was your guardian angel. (he looked exactly the same as how he did before he died)