Hell Teacher Nube OVA

The mischievous adventures of a young Ikkyū during his stay at Ankoku Temple. He relies on his intelligence and wit to solve all types of problems, from distraught farmers to greedy merchants.

Three months have passed since the Demon Lord was struck down, and the Demon Realm is holding a tournament to select his replacement. The leading contestant is Helck, a human hero who claims to hate his own kind. Some aren't happy with the idea of a human becoming the next Demon Lord—especially Vermilio the Red. She wants nothing more than to protect demonkind and prove Helck to be their enemy, even if she has to rig the competition to do it!

Mysteriously transformed into mini versions of themselves, Goku and his friends travel to the Demon Realm to uncover the truth and find a cure.

The Medicine Seller is a deadly and mysterious master of the occult who travels across feudal Japan in search of malevolent spirits called mononoke to slay. When he locates one of these spirits, he cannot simply kill it; he must first learn its Form, its Truth, and its Reason in order to wield the mighty Exorcism Sword and fight against it. He must begin his strange exorcisms with intense psychological analysis and careful investigative work—an extremely dangerous step, as he must first confront and learn about the mononoke before he even has the means to defeat it.

Masaru, is a second year Junior High student, and is undefeated in battle, He meets the Digital Monster Agumon, who has escaped from DATS, a secret government organization. Despite terrible first impressions, the two become best friends by talking with their "fists". With others, Masaru and Agumon work to investigate various incidents involving the Digital World and Digital Monsters, to try and get to the bottom of things.

In this epic battle of good vs. evil, the lines are blurry as hell. But a devilishly handsome demon hunter could be the world's best hope for salvation.