All Heavens: Start with Shrouding the Heavens Sacrifice

He Lang accidentally obtained the Adventure System of the Universe, and from then on gained the ability to travel through the universe.

From The Great Ruler, Tomb of the Gods, The Legend of the Great Desolate World, Primordial Desolation, Ever Night, and The Swordsman in the Snow, he journeyed through world after world, pursuing the true meaning of the Dao. (This is just a rough outline.)