The Immortal Me X Destroyer Girl is a Manga/Manhwa/Manhua in (English/Raw) language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is
With eternal life, in order to avoid the annihilation of the world and travel through time, he met an innocent young witch. He couldn’t bear to kill the girl in front of him, so he decided to go against God. Can he stop the birth of the World-destroying Witch?