In this world where humans resides in has discovered " The System " . There are different type of "Systems" that has been passed down Generations by generation with different kind of attributes .They use it for different things, Be it farming, Fishing, Cooking, etc. But at the same time a phenomenon started to appear, The "Gateway"- connects to different other worlds and inside appears many dangerous entities, It was called "Neighbors". The story follows Finn, An Aluminum ranker hunter, A hunter is a job given to hunt entities from other worlds and sell it to gain big money. Finn joined a group and entered a Low Rank Gateway to earn profit. However it wasn't going the way they expected it would.