Taking place after the events that occurred in Hayate no Gotoku! Can't Take My Eyes off You. Hayate, Nagi and Maria return to their daily lives at the Sanzenin Mansion and the Violet Mansion. (Source: Hayate no Gotoku! Wikia)

Hayate Ayasaki's misfortune continues to hand him the short end of the stick. Now settled into his routine at the Sanzenins' mansion and Hakuou Academy, the butler continues to work as hard as ever in caring for his young mistress Nagi while studying the school's grueling curriculum—all on top of trying his best to survive the multitude of troubles that life relentlessly pushes onto him. The unintentional chick magnet's life is far from quiet, forced to deal not only with Nagi's yet unnoticed infatuation with him, but also the evergrowing string of accidentally seduced girls—most notably, the exceptionally plain Ayumu Nishizawa, a friend of his before he became a butler, and the diligent Hinagiku Katsura, Hakuou's student council president. While one struggles to gain his affection and the other desperately tries to deny her own, both the girls are going to make the boy's life a little more complicated than it already is.

According to Murphy's Law, anything that can go wrong, will go wrong, and truer words cannot describe the unfortunate life of the hard-working Hayate Ayasaki. Abandoned by his parents after accumulating a debt of over one hundred fifty million yen, he is sold off to the yakuza, initiating his swift getaway from a future he does not want. On that fateful night, he runs into Nagi Sanzenin, a young girl whom he decides to try and kidnap to pay for his family's massive debt. Unfortunately, due to his kind-hearted nature and a string of misunderstandings, Nagi believes Hayate to be confessing his love to her. After saving her from real kidnappers, Hayate is hired as Nagi's personal butler, upon which she is revealed to be a member of one of the wealthiest families in Japan. Highly skilled but cursed with the world's worst luck, Hayate gets straight to work serving his employer all the while trying to deal with the many misfortunes that befall him. From taking care of a mansion to fending off dangerous foes, and even unintentionally wooing the hearts of the women around him, Hayate is in over his head in the butler comedy Hayate no Gotoku!

Hayate, Nagi and the gang spend the last days of summer break at Nishizawa's countryside vacation home. But a mysterious spirit has concocted a scheme to separate the butler from his young mistress. (Source: ANN)