The boy who Hayate meets is revealed to be Wataru Tachibana, Nagi's fiancé. However, Nagi and Wataru can't stand each other.
Um, the late fees come out 
to exactly 1.58 million yen...
Esto... me adeudas
 1.58 millones de yenes en total...
Significa que você nos deve 1 milhão
e 580 mil ienes.