One day at school, Nagi forgets her lunch. As her butler, Hayate is determined to deliver her lunch on time. While navigating the school grounds, he meets a couple of people, one who is friendly and one who wants to destroy him!
You can't let your guard down around her.
No se puede bajar la guardia con ella cerca.
Ela é uma professora, e mesmo assim 
temos que ter cuidado com ela.