A note asking for hairstyles popular among boys is found in the suggestion box.
In order to fulfill the request for the opinions of boys from Southern Middle School, Riko searches her cram school for boys from Southern Middle School and comes up with Nagi.
The one in the suggestion box 
from the south building.
El del buzón de sugerencias 
del edificio sur.
El del buzón de sugerencias 
del edificio sur.
La demande de conseil trouvée
 dans le bâtiment sud.
O na caixa de sugestão do prédio sul.