Having given up on life, 15-year-old Chise Hatori sells herself at an underground auction, where she is bought by Elias Ainsworth, a not-quite-human mage, for 5 million pounds. She learns that he intends for her to be his future bride, and her world begins to change.

Long ago, the humans and cats of Ulthar, city of cats, were struck by a great tragedy. For generations, the souls of those who were at the center of this tragedy have been sealed away by the king of cats. Chise and Elias travel to Ulthar in order to complete Simon's second task: to purify the spirits that remain.

To sorcerer Refnred's eyes, Chise is a sad girl, being duped by a mage. But no matter what Elias' true motives are, Chise has no intention of leaving him. Elias was the first person to value her, after all. As she walks towards the epicenter, she learns of the truth behind it. The sight of a boy appears behind the tragedy.

With the church's requests fulfilled, things were supposed to go back to normal. But Elias has been acting strange since the last request: he'd vanished on the first morning after Chise had spent a night in his room. Neither Angelica's kind words nor Ruth's pure words are enough to put Chise's mind to rest.

Elias, is an odd failure who pretends to be human -- but is it because of his master's words, or because of his distrust for humans, that he stopped communicating about himself? Lindel's alias, Echoes, refers to the to a song akin to the sound of snowmelt, traveling through the wind, causing the blooming of flowers and the dancing of fairies. The magic of the song turns into a mirror the surface of the water Chise peers into. What does she see beyond the mirror?

With Chise being transformed into a fox, she takes off running into the woods. Elias chases after her. Later, Chise is visited by the Leanan sídhe, who is attached to Joel, claiming that Joel will not wake up.

Stella visits Chise with her payment of sweets. Elias, irritated by and jealous of Stella, runs away. Chise finds him hiding in a shadow but becomes worried as he restrains her and seems to want to eat her.