Wrath of Devil God

After saving lives of all Gods, Devils and living beings of this world from a calamity, Evil Emperor was killed brutally by the same people he saved. Once on the very pinncale of world, Evil Emperor found himself reincarnated as a crippled human. Xjan Shi stands up and takes an oath to kill every people who slaughtered his kinsmen. Every living beings, everyone owes their lives to him, yet he was ridiculed until his death. The Evil Emperor decides to not feel even a thing when he decides to kill living beings of this world in future and takes an eternal oath to not be merciful to all his enemies and all lives who once owed him their own lives