It's the beginning of the new semester at Hakuou Academy. Hayate is eager to start the new school year, however Nagi has fallen ill and will not be going.
Makimura, in order to have you 
learn what heart is about,
Makimura-kun, para que aprendas 
en qué consiste el corazón,
Makimura-kun, para que você 
aprenda sobre o coração...