Eschaton game is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

A weakly ill boy, after knowing that he had cancer, faced a zombie outbreak. His normal life became hell, his family and crush were attacked by the zombies, but shockingly, after the boy was infected, a miraculous change occurred...