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!
How did you know?!
Oh! Woher wusstest du das?
¿Cómo lo supiste?
Oui ! Comment t’as deviné ?
Come fai a saperlo?!
Como sabia?!
Ого! Как догадалась?!