In the world where Ain lives, the future profession is determined by a goddess at birth. And the guy wasn't particularly lucky - he became an appraiser. His fellow students call him a scavenger and use him to their advantage. Hating himself for this, Ain is forced to grovel before them all day. But one day, he finds himself in a different, secret space, where he meets the spirit of the World Tree, Yuri, and the Guardian and Magister, Ursula. This encounter changes the appraiser's fate forever. Training under Ursula's guidance, Ain soon embarks on a journey to fulfill her daughter's cherished wish.