This Swordsman Is Really Strong

Qi cultivators seize the essence of heaven and earth for themselves, transforming from mortal to sage. Bai Yun was transmigrated into an infant's body, but his soul from another world was rejected by heaven and earth. Born with an innate deficiency, he could never absorb qi and cultivate. The other world was cruel, and only after he obtained the legacy of the Demon Abyss Lord, whose name shook the world, did he discover that the object feared by qi cultivators throughout this world was actually his good brother, who had transmigrated alongside him! But is there some mistake? Why did you arrive hundreds of years before me? And, bro, how come you're only a remnant soul now!