Against the Gods.

Hunted for possessing a heaven-defying object, Yun Che is a young man in both that life and the next. Throwing himself off a cliff to spite his pursuers, Yun Che is reincarnated as Xiao Che, a recently poisoned teen in another realm. Just as hated in this life as the previous one, Che must overcome his own hostile clan, his own inability to cultivate, and his own frosty fiancée.