Synopsis
2000 years later, the most feared demon lord is back — and his academy assessment says "Inept"!? Arnos was the kind of demon lord who could wipe out humans, elementals, and gods without breaking a sweat. But after an eternity of war and bloodshed, he got tired of it all and just wanted peace. So he reincarnated into the future, expecting to find a world worth living in quietly. What he found instead was a world that had gotten so comfortable with peace that his own descendants had basically lost their magical backbone. The power levels had dropped so badly…
