Fantasy: Tomb of the Abandoned Sky

This is the story of a lonely traveler. He was born on the earth, set out from the earth, and broke into the dark starry sky. A stone sword, lasting forever, comes from the depths of the universe. Who I am? Where am I? Where will I go? A vast fantasy world, starting from a stone sword, embarking on the road to abandon the sky. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.