Mahou Sensei Negima!

A 10-year-old prodigy who has completed a magic academy is sent to a large school in Japan for teaching experience. He is given the task of instructing a class of 31 female students in English. While managing the challenges of being a young teacher in a classroom full of girls and keeping his magical abilities hidden, he also seeks information about his father, a former figure known as the "Thousand Master" who vanished years ago.