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...
She's the type to feel obligated 
to handle everything herself,
Es de las que se sienten 
obligadas a hacer todo a solas,
Es de las que se sienten obligadas 
a hacer todo por su cuenta,
Son sens du devoir
 la pousse à en faire trop.
Ela é do tipo que se sente 
obrigada a lidar com tudo,