The boy who Hayate meets is revealed to be Wataru Tachibana, Nagi's fiancé. However, Nagi and Wataru can't stand each other.
Hayate, you've settled into 
your role as a butler pretty nicely.
Hayate, te has habituado muy 
bien a tu puesto como mayordomo.
Hayate, você está começando a entender 
melhor quais são as funções de um mordomo.