Hayate is forced into a situation his only viable option is to do something illegal, unethical, and unbecoming.  After being called a Mom like figure to Nagi, Maria goes to the source on information regarding Nagi’s father.
It doesn't matter who 
pays. Money is money.
El dinero es dinero sin 
importar quién pague.
Es dinero igual, sin importar quién pague.
Não importa quem paga,
 dinheiro é dinheiro.