I’m the God Killer (manhua) is a Manga/Manhwa/Manhua in english language, manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

An unspeakable deity descends upon Earth, turning all of humanity into fanatical followers! In this crazed world, Feng Ming loses everything. As the only normal sane person, he decides to reclaim his world, joining forces with the Goddess of Calamity and Misfortune, Si Yuan, and embarks on the path of slaying Gods!