Dahlia is reborn into a fantasy world after dying of overwork in Japan. She is raised by a master of magical toolmaking, who teaches her the craft and helps her develop a passion for it. Her engagement to the master's apprentice is short-lived, as her fiancé suddenly announces he's in love with someone else. Dahlia decides to focus on her craft, starting a business and encountering challenges along the way, including a chance meeting with a knight.