Negima is a manga series by Ken Akamatsu, author of Love Hina and A.I. Love You among other works.
Negima is the story of an english wizard named Negi Springfield who has just
graduated Magic School at the age of 10. His final task is to go to Japan to Mahora Academy, and all-girl's school, and become an
english teacher to a class full of beautiful and strange girls.
At first, the story is about Negi getting to know his class (with a few ecchi adventures) but as the story progresses,
the plot thickens, secrets are revealed, and the action increases. Negi makes several allies as well as opponents along the way.
This manga has also inspired Negima!? Neo- a spin-off manga, two animes (Negima! and Negima!?) several OVAs, a live action series and possibly a movie in the future.
Although Negima has a slightly rushed beginning, if you keep reading,
the story is amazing and has
original characters.
The manga is rated 16+ for a little ecchi and harem. It's general
categories are shounen, action, comedy, and fantasy.