What would happen if a girl who's life is almost perfect, become a disappointment to her family? What kind of life is next for her? Will her life continues to be miserable? Or will she be able to go through with it, with her Sky?

Hayate Ayasaki is an unlucky teenager who has worked since childhood to make ends meet due to his parents' irresponsible behavior. One day he finds out that his parents shoulder him with a massive ¥156,804,000 gambling debt, the person who the money was borrowed from in the first place tries to get all of the money left from Hayate. While running away from the debt collectors he ends up meeting Nagi Sanzenin, a young girl who is the sole heir of the wealthy Sanzenin estate, and due to a misunderstanding, Nagi ends up falling in love with Hayate. After he rescues Nagi from some kidnappers, she hires Hayate as her new butler.