Cthulhu Creator 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.cc fastest updating comic site. The Summary is

A strange woman’s video message made me miss my girlfriend’s date. Has my father who died in the fire reappeared? Retired firefighters are infected with the “otherworldly virus”. Could it be an evolution or mutation catalyst? The mysterious Solomon girl, the stunning assassin demon hunter, as well as ghouls, Taoist priests, and immortals. The major sects and factions are ready to move, and the mysterious Creator is planning to rule the world again… Who is plotting all of this?