The ones harassing Riko and her friends were "former" student council president Enomoto Yuiko (Eno), whose work was stolen by Maki, and her friend and student council treasurer Mizushima Sayori (Sayo). Declaring war on Riko and her friends, Eno and Sayo sneak into the student council room where they discover materials related to the love lab.
Meanwhile, Maki takes on all the responsibilities of the student council herself and collapses from the strain...
Did they find out that we sneaked 
into the student council room?
¿Ya descubrieron que nos metimos 
en el salón del consejo?
¿Ya han descubierto que nos 
metimos en la sala del consejo?
Se serait-elle rendu compte
 que l’on a fouillé leur salle ?
Elas já descobriram que 
entramos na sala do conselho?