The mamodo battle is beginning and they've all been sent around the world to find their book master. Zatch, a blonde mamodo, has forgotten his memories, but finds his book master: Monkey D. Luffy. Watch as the two travel around to acomplish their dream... to be King! (T for language)

AU Zatch Bell One Piece Crossover. The Straw Hats find 6 strange children and a weird horse on an uninhabited island unconscious. They lost most of their memories, what are mamodos? What's this about bookeepers in the battle for king? Please R&R.

La batalla para decidir al nuevo rey del Ultramundo va a tomar lugar esta vez en el océano más peligroso del mundo. Zatch va a buscar convertirse en un rey bondadoso acompañado del futuro rey de piratas, Monkey D. Luffy.

Just as Luffy sets out on his quest to become King of the Pirates, he meets a young boy who wants to be 'King of the Mamodo', and can only do it with Luffy's help. Their fates now linked, will they both be able to achieve their goals- or will both fail?

Side story to Quest of Kings. There are two mamodo worlds... both have battles for king... now an evil force will wreak havoc for both battlefields. 8 chosen mamodos, the same in both world must work together! Watch as Luffy meets Kiyo... Please R&R

AU crossover with Naruto and Zatch Bell. The Straw Hats island with a prophecy stating that Devil Fruit eaters, mamodos and Jinchuriki will destroy the world. However Luffy, Naruto and Zatch must save the world from the true evil... Please R&R

Quest of Kings side story. After a fight with a mamodo, the Straw Hats and their mamodo partners find that an interesting switch has happened... will they be able to fix it? Please R&R