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!
We'd switched places before I knew it!
¡Hemos cambiado de lugar sin darme cuenta!
Nós trocamos de lugar 
antes que eu percebesse!