In the depths of the universe, there is a legendary fantasy. It has power beyond imagination and can allow challengers to travel through various planes. It has unexplainable promises, where you can get strength, wealth, beauty and everything you want. But at the same time, it also has a cruel dark side, and there are countless corpses behind each challenger. The Super Dimension Fortress is the name of this fantasy. Every mission it publishes can bring you unimaginable benefits as long as you can complete the task and survive. A college student is unfortunate or lucky to be selected. He needs to survive in front of him, and he has to survive.