Hanako, Olivia, and Kasumi are asked by Aozora Tsugumi to go into the student council room to retrieve the Banana Papers that are hidden somewhere in there. The Banana Papers contain scandals that have happened around school and the student council president is apparently using that to blackmail other students. Hanako and the other girls try to decline the request, but Tsugumi manages to buy them all off one way or another and they end up having to go get the Banana Papers...
Don't they call those "silent but deadly"?
ألا يقولون "صامتة لكن مُميتة"؟
Stille Pupser stinken immer
fürchterlicher als die normalen.
Dicen que los que no suenan huelen peor.
Los que no suenan son los peores.
On dit que ce sont les pires.
Sbaglio o le chiamano "silenziose ma letali"?
Eles não chamam esses 
 de "silenciosos, mas terríveis"?
Их не просто так зовут тихим насилием.