The plot focuses on the character Onion (Ren) who became blind and mute during his childhood. Onion works at a hospital and gets to know the nurse Autumn (Cheung). Onion asks Autumn out on a date and when she says yes, he is so happy that he trips over a rock and is run over by a car. The death of Onion made Autumn realize that she was really deeply in love with him.Because he was the 6 billionth to die in heaven, Onion is granted a wish. He wishes to return to Earth for 5 days, since that is the longest he is allowed to go back. Unfortunately the rules stipulate that he cannot tell anyone who he really is and that, at the same time, he will be not be recognized as Onion himself by his former friends.Upon returning to Earth, Onion tries to talk to Autumn, who is upset over his death. He tries to tell her who he really is but can't without breaking the rules, and finds her being wooed by a doctor. He wastes a few days trying to tell her but finally gives up and makes the most of the time he has with her.At the end of the week, she realizes that he is Onion. But by that time, there are only few minutes left until the meteor showers, flying him back to Polaris.