【Book version now on sale to great acclaim! Also serialized on Kakuyomu and currently being adapted into a comic!】

Ashit awakened as a Demon Lord in a ruined castle.

Possessing "knowledge from his previous life," he governs his territory as a thorough "realist."

"My Lord Demon Lord, why do you attack Level 1 Heroes?"

"Defeat them before they fully mature. That is the art of war."

"My Lord Demon Lord, what do you plan to do by sending counterfeit money to enemy nations?"

"Throw their economy into chaos and lead them to their own destruction."

"Werewolf units have attacked. Will you use silver bullets?"

"Not bullets. Blast them with cannons."

Thus, Ashit "reformed" the outdated system.

Having become a lord beloved by both his people and his subordinates, he would eventually be known as the strongest Demon Lord in history.