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.
A lot has happened since we 
started our love lab in here.
Han pasado muchas cosas desde que 
empezó nuestra investigación de amor.
Han pasado muchas cosas desde que 
empezó nuestra investigación del amor.
Depuis qu’on a commencé
 à étudier l’amour,
Muito aconteceu desde que começamos
 nosso laboratório de amor aqui.