Zentrum. The hub world of the multiverse, surrounded by petals of other worlds, our own Earth among them. Zentrum was once powerful and advanced, but a global cataclysm stopped civilization dead in its tracks. Here, on the crossroads between thousands of different worlds and civilizations, men and women of the Border Guards stand their watch.
In Zentrum, an ordinary guy from Earth has a simple choice: to become either a smuggler or a border guard. Not that there's always a clear difference between the two.
But a time comes when a man has to decide what exactly do his badge and his gun mean for him. Because now a malicious force that vanquished Zentrum has Earth in its sights...