Eventually, when only ten Mamodo remain on Earth, one by the name of Clear Note takes the other nine on in a grand battle to expedite the eventual conflict. As Zatch and Kiyo continue to excel in the tournament, a Mamodo named Zofis awakens several imprisoned Mamodo this imperils the entire world after the titanic Faudo is awakened. Kiyo serves as Zatch's assistant, helping Zatch to win the tournament in order to achieve his goal of gaining enough power to stop the Millennial Mamodo tournaments for good.
However, every Mamodo has a spell book that requires a human assistant to use and also serves as that Mamodo's tether to Earth.
'Zatch Bell!,' also known as 'Golden Gash Bell!!' In Japan, is a comedic fantasy battle anime about Kiyo, a junior high school student, and Zatch Bell, an amnesiac 'Mamodo.' One hundred Mamodo have headed to Earth to participate in a 'Millennial tournament' that will declare the new king of the Mamodo world.