Didier Shaw goes to sleep in his bed as usual - drunk and alone. When he wakes up, he's not drunk, and he's not alone. He finds himself in an oval stone prison, where's he's told that he is a wave fighter. It is a world that looks like a video game, where he is rewarded with skills and experience points for killing things. And he's going to have to do a lot of that, because unless he can survive wave after wave of monsters, he will never be given a pass home. He and his fellow wave fighters must improve their powers and level up their base if they're to become powerful enough weave fighters to leave this new world.