A 10 year old mage is given an assignment to be an English teacher in an all girl's japanese school called Mahora Academy. The story later develops to a magical/high-level martial arts fighting. Lots of fanservice! Don't judge this manga from the first few chapters, action quickly becomes a major focus of the manga.
Ten-year-old prodigy Negi Springfield, has just graduated from magic academy. He dreams of becoming a master wizard. Instead he's sent to Japan to teach English…at an all-girls high school! All the students are delighted with their cute new teacher - except for Asuna, who resents Negi for replacing Takahata-sensei, the teacher she secretly has a crush on.
Although he is forbidden to display his magical powers, sometimes Negi just can't help it. And when Asuna discovers Negi's secret, she vows to make his life as difficult as possible - just the thing to prepare Negi for the challenges of life as a Magister Magi!
As the story develops, Negi's bonds with his students deepens (in more ways than one!). Negi and his friends must overcome trials and difficulties (not to mention middle-school exams) which take root into events tied to Negi's family, and especially to his long-lost father, Nagi The Thousand Master Springfield.