Poor Hayate Ayasaki is responsible for repaying his parents' 150 million yen debt. One Christmas, he meets a girl named Nagi, and after a series of misunderstandings, he somehow ends up working as her butler. Nagi covers for Hayate's debt, but has Hayate dug himself deeper into a different kind of hole? A hilarious tale of butlers, love and battles (?!).
Surf! Sun! Gratuitous bikini shots! Battle nuns! Vacationing in the Greek isles, Hayate and the gang find all this and more. While Hinagiku works up the nerve to confess her feelings, Hayate battles thieves, swindlers and reprobates bent on winning the Sanzenin family fortune…and among them is none other than his mysterious childhood love, Athena…