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...
Y-Yeah...
...نـ-نعم
S-Schon …
Sí…
Sí…
Oui…
S-Sim...
Ну… да…