Hah......... Of course there's will be incidents just before they can enjoying freedom the principality people are oppressed by tyranny, after the kingdom takeover the city they can breathe for free. Now the little tyrant are back in power they will feel threatened by the young and inexperienced new ruler.

Souma is an Alpha Japanese, a rare breed of japanese chad man that taken enemy, threat, and traitors very seriously.

Treating principality as a country who's been defeated..... Hello little prince, knock-knock on your little tiny head your 'oh big army' are defeated on the battle moreover your king have been slain so tell me if that's not defeated conditions. Moreover all of your stupid rotten scheme with the kingdom corrupt nobles already exposed for everyone to see.

Diablo..... it's very earthly name..... So maybe that demon lord are an earthlings too same like Souma