He Xiao was originally an orphan. He was found by his relatives when he was 20 years old and became a famous son of a wealthy family. He died in an "accidental" car accident when he was 21 years old. He was dragged to various worlds to do tasks in order to get a chance to live a new life.
[Updated from time to time]
World 1: The downtrodden young master
World 2: The Little Prince of Music
World 3: Fortune Telling Liar
World 4: Poor little guy at the end of the world
World 5:
…
Intention: pure love