Yuuya destroyed over 3000 BETA with a single cannon blast.  The whole base throws him a party, but instead of attending he spends the evening staring up at his TSF.  He begs Yui for a chance at some real close-range combat experience, but changing the schedule, she says, will be very difficult.
What are you doing back here?
¿Qué estás haciendo aquí?
¿Qué estás haciendo aquí?
O que faz aí, sozinho, no canto?