The Classroom Transforms Into a Lethal Weapon!? Curse of the Demon Blade
Katsuya steals money from a shrine, now the sword from that temple turns into a youkai trying to kill sinful people, including Katsuya.
Aired 13/07/1996EP 13 - The Classroom Transforms Into a Lethal Weapon!? Curse of the Demon Blade
1996
Jigoku Sensei Nube
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: Anime News Network)