After a series of bizarre incidents in his school, student Kometaki Okaka decided to investigate the cause of it. What he discovers will turn his world upside down.

Mariko is stuck in a job where she is constantly messing things up and being berated, to the point where she almost wants to just give up entirely. She accepts an invitation to go offroad motorbiking with some guys, to relieve her job stress and possibly even find something in her life she can enjoy.

Every 100 years, a battle of 100 demon children are sent to Earth to compete in a battle to become king of the Demon World. Each demon is paired with a human partner who is given a spell book of a specific color. The human can cast the demon's spells through their book. If a demon's book is burned, they disappear and return to the Demon World. The last demon remaining becomes the king. The show is oriented around Gash Bell and his human partner, Takamine Kiyomaro. From Viz: For his 14th birthday, Kiyo received a strange little boy named Zatch Bell as a bizarre gift from his father. Kiyo soon discovers that there's more to Zatch than his dad ever realized--Zatch is a mamodo child with magic powers that are unleashed by reading spells from a mysterious red book...and there are 99 other kids like Zatch who must fight one another to become the king of the mamodo world!

For his 14th birthday, Kiyomaro received a strange little boy named Gash Bell as a bizarre gift from his father. Kiyomaro soon discovers that there's more to Gash than his dad ever realized--Gash is a mamodo child with magic powers that are unleashed by reading spells from a mysterious red book...and there are 99 other kids like Gash who must fight one another to become the king of the mamodo world!

Akiyama resume: One day a tanuki named Monoko stumbles across a baby abandoned by its mother. Having no family of her own, she raises the baby to the best of her ability even though they originate from different species. Hardships and enemies face the tanukis but that doesn't stop Monoko protecting the baby at all costs. Many trials await this baby as it grows and communicates with the animal world.