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...
The student council at 
this school is quite busy.
El consejo estudiantil de esta 
escuela tiene mucho trabajo.
El consejo estudiantil de esta 
academia tiene mucho trabajo.
Être au conseil des élèves
 est très exigeant…
O conselho estudantil dessa 
escola é bem ocupado.