How to return a dimensionpover correctly RAW novel

60 years ago, when a ferocious emperor ruled the world and the world was in chaos, a planewalker appeared to defeat the emperor and calm the chaos.

Later, the Warpwalker returned to his original world, and the people continued to make peace in his honor.

But what, planewalkers keep coming over after that? And then some mysterious monsters? Hey man! Enough now, come on! We’re at peace now, so you can’t come! Please, go back to your world~?!