Under Heaven, Strength Is Law, The Remake.

Qin Feng lived a life filled with regret. Born talentless in a world ruled by nanotech Cultivators and alchemy,he was left behind, and powerless to change his fate. While others advanced to higher realms, he could only watch from the shadows, suddenly he got one of his dreams coming to life. Then his death comes suddenly—an accident not written by fate. At the moment his soul leaves his body, Qin Feng enters the mysterious Gate of Reincarnation, where an unknown being judges his wasted life. Given a second chance, he is reborn into a new powerful world, and as the opportunity to rewrite his destiny.