While the mamodo Hyde yearns to battle, Eido his air-headed human partner would much rather spend his time eating yellowtail burgers, skateboarding, and girl watching! Hyde convinces Eido to take some of Kiyo's schoolmates hostage in a water storage house and leaves a note in Kiyo's locker at school...but Eido forgets to write the name of the rendezvous location! Luckily, Zatch sniffs out where their friends are laying hostage and engages in a battle with Kiyo against Eido and Hyde. Using all his wind power, Hyde still struggles against the ever-more powerful Zatch...until Eido gives up and wants to run away. But then Eido remembers when he first met Hyde, just after a confrontation with hooligans, and remembers asking Hyde to 'make him stronger!' With more determination and sudden will to battle, Eido and Hyde make a surprising comeback, and unleash a powerful new spell!
—Anonymous