Zatch Bell!
金色のガッシュベル!!
2003 · Fuji TV · Animation/Action/Adventure/Fantasy/Comedy
Japan
Takamine Kiyomaro, a depressed don't-care-about-the-world guy, was suddenly given a little demon named Gash Bell to take care of. Little does he know that Gash is embroiled into an intense fight to see who is the ruler of the demon world.