LBD That Travels Through Major Games and Anime

In the age of capital chaos There is a world and leaders who achieve true democracy They are divided into multiple areas Although no one is producing it, time travelers will solve everything. What can material rewards and an invincible protagonist do? I guess it will turn everything upside down. Tesla: "The second generation of traversers has disappeared, and the next step is..." Schrödinger: "The third cycle should be more conservative." Einstein: "Who knows what will happen?" In a continent where technology is developing rapidly and everyone is happy, what made them... Disappear? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.