Time Travel Girl - S01

Mari Hayase's father, a scientist named Eiji, disappeared three years ago, leaving behind a strange pendant called the armillary compass. When Mari finds a mysterious book one day, the compass suddenly glows and sends her back in time. With the help of her best friend Waka Mizuki and Waka's brother Shun, Mari journeys through the past to uncover the truth about her father's disappearance. Along the way, she encounters famous scientists who revolutionized the understanding of magnets and electricity.