Realist Maou Niyoru Seiiki Naki Isekai Kaikaku

In a dilapidated castle Astaroth awoke as a Demon King
With his wisdom from his past life he would rule over his lands as a thorough realist
Demon King why are you attacking the level 1 Heroes
Defeat them before they become stronger That is called strategy
Demon King why are you sending fake money to the enemy country
To bring chaos to their economy so they will selfdestruct
The werewolf troops have attacked Should we use silver bullets
Not bullets shoot them with canons
And like that Astaroth reformed the old tendencies
He became a lord who was loved by the people and his subordinates and he would go on to be called the most powerful Demon King in history