In a wonderfully created fantasy world, Coco is a young normal country seamstress who has always been fanatic about magic and dreams of using it. However, it is said that magic can only be used by witches. One day, Coco secretly witnesses a traveling witch, Quifrey, doing magic by drawing it. Equipped with this bit of knowledge, Coco, using an old magic book and pen she had gotten from a mysterious brimmed hat witch when she was little, tries drawing her own magic. This results with her turning her home and mother to stone. In order to rescue her mother, Coco must become a witch so she may gain access to a witch's library where she hopes to find a counter spell. Quifrey who is already instructing three other girls in magic, agrees to let Coco become his fourth witch apprentice. The story will follow Coco's apprenticeship as she discovers the secret world of magic, encounters dangers, and learn the mysteries involving the forbidden group of brimmed hat witches who have taken an unknown interest in her.

Note: Nominated for the 11th Manga Taishou Award in 2018. Won Best U.S. Edition of International Material - Asia, together with , at the Eisner Awards in 2020. Won the Best Manga Award at the Harvey Awards in 2020.