A slightly chuuni boy is fast asleep at home when something from a world of the highest-level civilization suddenly modifies him and takes him on all sorts of spatial jumps. What is he supposed to do? The boy says, "What can I do? I'm helpless too. I can only put on a show in all these different worlds." What? This planet has high-tech combat mechs? Are you looking down on the technology of my advanced civilization? What? This planet can unleash magic that destroys an entire city in an instant? Then do you know what a Star-Slaying Cannon is? What? That's still not enough? Then do you know what a dimensionality-reduction attack is?!
