How a Realist Hero Rebuilt the Kingdom: Volume 4 (How a Realist Hero Rebuilt the Kingdom‪)‬

ALL'S FAIR IN LOVE AND WAR

When the Principality of Amidonia sends a desperate call for help defending itself against civil war and enemy invasion, Souma agrees to aid their former enemy. But the Principality's plea comes with strings, or perhaps rewards, attached—including a marriage proposal from their princess!