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.
And the last one left here 
has to pay the whole bill.
Y el último que quede 
pagará toda la cuenta.
¡El que se quede aquí, paga todo!
O último que ficar aqui 
vai pagar toda a conta!