The boy who Hayate meets is revealed to be Wataru Tachibana, Nagi's fiancé. However, Nagi and Wataru can't stand each other.
If Isumi comes to like Wataru, 
it would solve everything,
Si a Isumi le gustara Wataru, 
el problema estaría resuelto.
Se a Isumi começasse a gostar do 
Wataru, tudo estaria resolvido, mas...