After Kanade rejects his confession of love, Shikijou presses her for a reason, grabbing her arm and saying, "This isn't normal. This isn't like you." Kanade throws him by reflex, then Shikijou flies into a rage and turns a stun gun on her!
When Kanade slowly regains consciousness, she finds herself in a dimly lit abandoned warehouse where a group of delinquents are chatting and laughing. Kanade's hands and feet are tied with rope, so she can't move. Shikijou moves closer to her saying, "Kanade-san, you aren't normal right now. We have to reform you."
You should have seen it once in 
a middle school science class.
.لا بدّ أنك شاهدته في قسم العلوم في الاعداداية
Ihr solltet das schon mal im Chemieunterricht
in der Mittelschule gesehen haben.
Lo habrán visto alguna vez en sus clases
de ciencias en secundaria.
Lo habréis visto alguna vez en clase
de ciencias en secundaria.
Tu as dû en voir au moins une fois
en cours de chimie au collège.
Dovreste averli visti una volta
a lezione di scienze alle medie.
Já devem ter visto isso numa
aula de ciências da escola.
В средней школе на уроках химии
вам должны были показывать.