Jigoku Sensei Nube
English title: Hell Teacher Nube
Japanese title: 地獄先生ぬ～べ～
Type: TV
Episodes: 49
Premiered: spring 1996
Source: Manga
Genres: Comedy, Horror, Supernatural
Studios: Toei Animation
Producers: TV Asahi
Duration: 24 min per ep
Rating: PG-13 - Teens 13 or older

Nube is a clumsy, easygoing, and very kind teacher, but he has a secret under his glove on the left hand. He has a monster hand, and he also has the ability to sense ghosts and evil spirits. So he protects his dear students from these evil spirits with his monster hand, proving to be very powerful.

(Source: ANN)