A student is caught cheating with his cell-phone, and Chiaki is super-mad! He calls all the students to an assembly and angrily threatens to destroy the phone of anybody who's caught with one on school grounds.  The students begin to get angry...
That would've been in the Sengoku era...
...ذاك عصر حروب الولايات اليابانية
Das ist doch nicht deine Jugend,
sondern die Zeit der Streitenden Reiche …
Eso sería en la guerra civil…
Y a un monde
entre ma jeunesse et la vôtre…
Non sta parlando dell'epoca della sua giovinezza, 
ma di quella Sengoku...
Isso daí é da época das 
guerras civis japonesas...
Ничего себе молодость. Эпоха Сенгоку.