His family had died in a car accident...
He blamed himself for the accident.
And he hoped that soon one day he would be able to meet them. He was leading a sad life and was waiting for his life to end.
One day he met a strange man in black clothes on the street on a partially cloudy full moon night.
That meeting leads him to his most desirable wish to die. But in his last moment he only wanted to live. To the extent that he could sacrifice anything to live.
Note: I will be posting this story on royal road.. with the same name
https://www.royalroad.com/profile/387244/fictions