Takamine Kiyomaro is a junior high school student who thinks he’s too smart for school, to the disappointment of his mother. On his 14th birthday a surprise literally crashes through Kiyomaro’s window, in the form of… a small naked child?! His name is Gash Bell and his goal is simple: be a mentor for Kiyomaro, at the request of Kiyomaro’s departed father. In return, Kiyomaro must help discover the secrets behind Gash Bell’s amnesia and his past, with only a red book as a clue. As if things weren’t crazy enough, Kiyomaro soon discovers that Gash Bell is a demon -- one of many on Earth -- who can be forced back to the demon world if its corresponding book is burned. Armed with the power of the red book, Kiyomaro must now help Gash Bell defend himself against other demons who want to vanquish him from the Earth, lest his newfound friend vanish forever!
Some years into the future, a strange, unexplainable natural disaster has broken off a piece of the Japanese mainland. Known as the Lost Ground, it is now inhabited by people with Alters -- machine-like extensions of their own will. In order to keep the peace on the Lost Ground, the HOLY organization uses its own Alter capabilists to police the region. In the midst of the chaos is a young man named Kazuma, whose life will soon change forever as he discovers his hidden abilities, and how to wield them.
s-CRY-ed and Zatch Bell both have a lot of fighting and in both of the shows, most of it is fighting so if you like action and fighting, you should see these both. A little warnign though for s-CRY-ed is that it kind of is a lot more violent then zatch bell.
Minato Sahashi was living a normal life; he had just failed his college entrance exam for a second year in a row, and lived a quiet life in a single's apartment. That is, until the busty Musubi fell from the sky on top of him! She is a Sekirei, one of 108 that are destined to fight each other until only one remains; and he or she will ascend to heaven with his or her chosen one known as an Ashikabi. Minato soon finds himself in the embrace of Musubi, becoming her Ashibaki - but his life will only become more complicated. Musubi isn't the last to claim Minato as her Ashibaki, and what's worse, plenty of other Sekirei and opponents stand in his way!
If there's one thing these two share, it's the central storyline. Though Sekirei and Konjiki no Gash Bell!! are targeted at different age groups, their storylines are notably similar. If the "aliens sent from another world to find human 'masters' in order to battle in a tournament until only one remains" aspect of either show caught your attention, be sure to give the other a try, as they both feature a lot of action/fight scenes involving superpowers and a good deal of comedy. The 101 Mamodos and 108 Sekirei are more similar than there are words to describe. Put simply, Gash Bell!! + harem + (a lot of) ecchi = Sekirei.
Ever since Yugi Mutou completed the Millennium Puzzle his life has changed; he's made friends, learned how to play the card game Duel Monsters and has gained more confidence in himself. After his grandfather is beaten in a duel he is challenged by Seto Kaiba, ranked number two in the world, but Yugi beats him regardless. Now, as a result of his victory, Yugi has attracted the attention of the game's creator, Pegasus. Yugi is then challenged to a dual in an alternate reality where magic brings the monsters to life, but is beaten and his grandfather's soul is taken. In order to retrieve it Yugi must now participate in a tournament against the best duelists in the world, defeat the game's creator, and learn more about the secrets within his Millennium Puzzle!
Yu-Gi-Oh! and Zatch Bell are very similar in the fact that there is battling within the show and the basis is the battling. The only difference is that ZatchBell is little monster things and Yu-Gi-Oh! has cards.