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!
His "Encouragement of Learning" 
sold 3.4 million copies, you know!
¡Su "Estímulo para el aprendizaje" 
vendió 3.4 millones de copias!
A série "Estudando" já vendeu mais 
de 3.4 milhões de cópias!