Mitsuha is hatching a new money-making scheme when news arrives that the kingdom is under attack! As the invading army closes in on the capital, Mitsuha finds herself at the palace, faced with a decision...

Mitsuha and the captain successfully repel a horde of goblins, thanks to a stroke of ingenuity. Now it's up to Mitsuha to rouse the mercenaries of Wolf's Fang to action, so they can confront the Empire's army!