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!

The Great Ancestral Dragon appears to reinforce the Empire, but Mitsuha will stop at nothing to protect her kingdom!