The Ancient Magus' Bride #1

This opening volume of the fantasy manga series introduces Chise Hatori, a young girl sold at auction who is purchased by a mysterious, non-human mage named Elias Ainsworth. As she begins her new life as his apprentice and bride-to-be, Chise discovers a hidden world of magic, mythical creatures, and ancient bargains. The collection establishes the central relationship and the darkly enchanting tone of the series, adapting the first several chapters of the original Japanese release.