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...
For how long?
منذ متى بالضّبط؟
Für wie lange denn?
¿Desde cuándo?
¿Desde cuándo?
Longtemps ? C’est-à-dire ?
Da quanto?
Quanto tempo?
Это насколько же?