Hayate the Combat Butler! 2

With a debt of 1.5 million, 16-year old Hayate Ayasaki's parents sell him to the yakuza to pay it off. Not wanting to be cut up and sold on the black market, Hayate escapes from the yakuza thugs, and finds a very rich girl by the name of Nagi wandering in a park at night. Deciding to kidnap the girl for ransom money, Hayate's kidnapping speech was wrongly taken as a confession of love to Nagi. She finds out about the debt, and, feeling sorry for Hayate, pays it off, as long as Hayate will be her butler until he pays off the 1.5 million (which will take about 40 years).