Nishikata receives his first cell phone and can't wait to play tricks on Takagi-san.
He sends her a scary video to frighten her, but it doesn稚 quite work. 
As usual, Takagi-san has the upper hand when it comes to teasing...
Why not?!
!لِمَ لا؟
Wieso?
¡¿Por qué?!
¡¿Por qué?!
Ben pourquoi ?
Eh? Ma come?
Hã? Por quê?
А чего так?