Bio (first and last non-chapter)

Y/N was a successful merchant, but one day he got ambushed by the Treasure Hoarders and before they could take him with them a witch in blue clothes having astrology as a hobby came to his rescue and thus he became interested in astrology too and the witch herself as well. One day the two find out that a star has fallen and are now on their way to solve whose constellation the star belonged to, will they find the owner?

I do not own Genshin Impact, it belongs to its rightful owner Hoyoverse.