Negima! 38: Magister Negi Magi by Ken Akamatsu
Negi Springfield is a teacher at an all-girl Japanese high school. He also happens to be a 10 year-old wizard with a wide variety of strange and unusual students. With every adventure they embark upon, they learn more about each other and themselves. Negima! Comes from Ken Akamatsu, one of the best known manga writers in the west. This series regularly features in the top-half of graphic novel bestseller lists and two anime series of Negima's madcap adventures has been created.