The story of Season 3 will tell the story of Maine, who is an apprentice blue-robed priestess in the temple, and her friend Luz, sister Dolly, and the children in the orphanage who made a children's version of the Bible picture book. Maine, who is more and more passionate about books, decided to challenge the next goal "letterpress printing". Maine's powerful magic and rich knowledge also made the nobles discover her value, and the nobles who hated Maine also secretly targeted Maine. For safety reasons, a guard knight was arranged to protect Maine, and under the order of the chief priest Ferdinand, Maine became the adopted daughter of the noble Casted. At the same time, a new life was born in Maine's family, and Maine became a sister. In addition, one of Maine's attendants, Delia, and Dirk who was abandoned in the orphanage with a body erosion... Maine wants to protect more and more people and things, and the devil's hand aiming at her is also approaching step by step. What will happen to Maine! ?