Hell Teacher Nube(1996)

Hell Teacher Nube is a supernatural series following Nueno Mesuke, a schoolteacher with a dark secret. His left hand is actually a demon's claw, a permanent reminder of a fateful exorcism gone wrong. Years ago, while protecting a child from an overwhelmingly powerful demon, Nube lost his own hand. The only way to survive was to allow the demon to possess him, fusing its claw with his body. Now Nube walks a fine line between educator and exorcist, using his demonic hand to banish malicious spirits, ghosts, and supernatural threats that endanger his students. Balancing classroom duties with supernatural combat, Nube protects those under his care through both teaching and demon-fighting prowess.