I live in the dark world

Kai lieng lived a normal life, until one day he began to be tormented by nightmares and terrible visions of death, pain and destruction. Was abandoned by his family, suffered constant pain and almost lost his head.When he was on the verge of collapse he receives a ray of hope as he investigates his nightmares and ancestors discovers a truth worse than madness, the land and the abyss were combined in one and it seems that his madness is the key to save the world while trying Survive in a dark world.