Hayate Ayasaki's bad luck keeps giving him the short end of the stick. Now adjusted to his routine at the Sanzenin mansion and Hakuou Academy, the butler continues to work just as hard in taking care of his young mistress Nagi while tackling the school's grueling curriculum—all while trying his best to survive the multitude of troubles that life relentlessly throws at him. The unintentional chick magnet's life is far from quiet, as he is forced to deal not only with Nagi's yet unnoticed infatuation with him, but also with the ever-growing string of girls he has accidentally seduced—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 win his affection and the other desperately tries to deny her own feelings, both girls are going to make the boy's life a little more complicated than it already is.