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!
No, I had no idea, either.
Ist schon gut.
Auch für mich ist das alles neu.
No, yo tampoco tenía idea.
Moi non plus,
je ne savais rien de tout ça.
Ma no... Nemmeno io lo sapevo.
Não, eu não sabia também.
Что ты! Я ведь и сама 
об этом впервые слышу.