The Domineering Devil Returns to the World

Seven hundred years ago, the guys from the heaven invaded the demon world, and Los, one of the four demon kings in the demon world, was the only swordsman in the demon world. The guys from the heaven came down and destroyed the demon world. The demon king, the four demon kings, and some others survived, but they all sealed themselves in their precious things and scattered them everywhere. And this is where the story begins. The protagonist saw Ross's sword when he was walking with his high school classmates, so he started his own era... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.