Witch Hat Atelier, Volume 7 (Witch Hat Atelier #36-40)

As the new trial comes to an end, one of Coco's rewards from Beldaruit the Wise is the story of Qifrey's past and how he came to desire the mysteries of magic. Feeling a connection with her own desire to save her mother, Coco departs for the source of all answers: the Tower of Tomes. But it is a perilous journey to make on her own, and the secrets held within could sway even the most virtuous of witches...