Mahou Sensei Negima!

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised.

From Baka-Updates
Ten-year-old prodigy Negi Springfield, has just graduated from magic academy, and in order to become a master mage he is sent to Japan to teach English at an all-girls middle school. But Negi has a bigger dream than just becoming a master mage. He wants to find his missing father, "The Thousand Master", the strongest mage that has ever lived. And he soon finds that searching for his father wont be as easy as he first hoped. In fact, it pushes him and his students into life-or-death battles that decides the fate of millions.
And throughout all this, Negi finds out some of the secrets hidden in Mahora Acedemy Class 3-A. Are these girls, truly, what they seem?