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? An hilarious tale of butlers, love and battles…

In Greece, Hayate finally finds his mysterious childhood love, Athena. But Athena claims to have no memory of their past together. How could she have forgotten that weird disappearing castle with the smoke monster and the giant clock? It wasn't that many volumes ago. At any rate, if Hinagiku is ever going to confess her feelings to Hayate, she'd better do it now…