As if dealing with his mistress Nagi's outlandish demands weren't taxing enough, poor (yet perennially) hardworking Hayate has to suffer the ignominy of being challenged to a duel by Nagi's fianc - Wataru Tachibana. With his saber at the ready, Hayate is prepared to defend himself...but is there any logical reason why he's even fighting a duel in the first place? Shouldn't the simple act of keeping the Sanzenin household spic and span be enough? Not if your name's Hayate Ayasaki it isn't.