Interdimensional Cosmic System

Year 1920: The sky turned red and reality fractured and the rifts opened into the earths all over and from them the monsters poured out endless hordes of orc,goblins,werewolves and hundreds of other monsters that only existed in fairy tales and myths all hope was gone military weapons dont work on them earth had lost nearly two third of its population .But at the same time some people awaken the supernatural powers and they were given a system by the Gods of other worlds the "Awakeners" fought the monsters and they were praised as heros. Few years later the Gods of other world give humans the acess to system so every human who is 17 or Above can be artificially awaken powers and can revive system and "Awakeners" were divided into ranks SSS rank to F rank Present time Liam shiore is a 20 years old F rank With core output of only 0.02 kilo jules he is seen as the waste of oxygen To his father and brother he is a family mistake. He is an F-rank nobody discarded by the very interface meant to guide humanity. But a glitch in the cosmic update grants him a title no one was meant to hold: The Dimensional Warden and he was thrust into an unknown world. Will he able to survive? Will he able to control the game? Will he able to become an player from being just an npc? Or he will be just a puppet of system like else ?