God Eater

"In the early 2050s, unknown life forms called “Oracle Cells” began their uncontrolled consumption of all life on Earth. Their violent nature and god-like adaptability earned them the name “Aragami”. Facing an enemy completely immune to conventional weapons, modern society collapses as humanity is driven to the point of extinction. One last hope remains. Following the Fenrir Organization’s development of “God Arcs”, Oracle Cell based living weapons, their wielders are organized into an elite force of “God Eaters”. Your mission is to defeat the Aragami and gather material from them for research, but you come to realize that you are being drawn in to a giant conspiracy that will irreversibly alter the fate of humanity…"