Touya and Minori and the rest of the players in the training camp are hitting a wall with the way they fight.  And Minori's suggestion is that they introduce themselves to one another!
We don't. It's true.
Wir kennen uns nicht.
Das ist Tatsache.
No los conozco. En serio.
On ne sait rien les uns des autres.
Io non so proprio niente.
Não nos conhecemos... 
É verdade.
Мы ничегошеньки
друг о друге не знаем!