Jigoku Sensei Nube

Hell Teacher Nūbē (地獄先生ぬ~べ~, Jigoku Sensei Nūbē?) is a horror-comedy manga created by the collaborative efforts of writer Shō Makura (真倉翔?) and artist Takeshi Okano in Shueisha's manga anthology book Weekly Shōnen Jump. The series ran for 276 chapters (not including the two pilot chapters where Nūbē was known as Nubo (ぬ~ぼ~ Nūbō)) from Issue 38, 1993 through Issue 24, 1999. A 48-episode anime series based on the manga was created by Toei Animation, and aired from 1996–1997 on Animax and TV Asahi. The anime resulted in three movies and three OAV episodes. A spinoff story for Izuna Hazuki the itako-girl, Izuna the Spiritual Medium (霊媒師いずな), has been running in Oh, Super Jump since July 2007.

The series follows Meisuke Nueno (鵺野鳴介, Nueno Meisuke?), aka Nūbē (ぬ~べ~?), the homeroom teacher for Class 5-3 at Dōmori Elementary (童守小学校, Dōmori Shōgakkō?). More than a teacher, however, he is a skilled exorcist, protecting the town of Dōmori from supernatural threats with strength borrowed from a powerful demon sealed in his left hand—a technique he calls the Demon's Hand (鬼の手, Oni no Te?).

Source: http://en.wikipedia.org/wiki/Hell_Teacher_N%C5%ABb%C4%93