Final Boss Fake-out: The Protagonist Thinks She Killed Me So Now I'm Free! - Vol. 2 Ch. 7.1 - I tried giving a king a game over

[MangaDex]

 

[bobdave19]

Local demon lord destroys neighboring country’s government and collapse their economy by flooding the market with cash

And right after wiping out their entire army too

 

[breakthelimit]

Wasn’t zero spell lv.9?