Since the tender age of nine, Hayate Ayasaki has busted his behind at various part-time jobs to support his degenerate gambler parents. And how do they repay their son's selfless generosity? By selling his organs to the yakuza to cover their debts! But fate throws Hayate a bone...sort of. Now the butler of a wealthy young lady, Hayate can finally pay back his debts, and it'll only take him 40 years to do it.

As Hayate's beach adventure reaches a climax, he finally reunites with his long-lost brother--to fight a possessed teacher! But our battlin' butler's troubles are only beginning. His quest to restore Nagi's fortune takes him to her eccentric grandfather's castle, where he has to overcome mazes, monsters, and an overly literal booby trap. Maybe the gang ought to go out to a nice movie instead.