Izumi, Miki, and Risa invite Hayate and Nagi to their school club which Hayate uses as a way for Nagi to socialize.
With a 500 million percent certainty, 
that's because you spent it yourself!
¡Y estoy seguro al 500 millones por ciento 
de que fue porque te lo gastaste tú!
Tenho 500 milhões de porcento de
certeza que eles foram gastos por você!