Frieren and party finally arrive in Äußerst, ready to undergo the first-class mage exam, and meet a number of colorful characters who are there to do the same.

Due to the Spiegel, a legendary monster that can create perfect replicas of others, the test-takers who would conquer the Ruins of the King's Tomb must first face the ultimate enemy: themselves.

With the second test behind them, only one remains - but first, Frieren and Fern need to settle an important matter in town. What awaits them in the third test?