Hayate the Combat Butler

Hayate is an unlucky teenager who worked since childhood to make ends meet due to his parents' irresponsible behavior. One day he finds out that his parents were planning to sell his organs to the Yakuza to make money, leaving behind a massive gambling debt on his shoulders. While running away, he ends up meeting a young girl who is the sole heir of a wealthy estate, and due to a misunderstanding, the girl ends up falling in love with Hayate, she hires Hayate as her new butler.