[Nero was holding his face in his hand, wrestling with his thoughts and the fact that, no matter how badly he wanted to, he couldn't go and see Kyrie right now.

The only reason he's snapped out of his thoughts is because when Pyrrha walks out to the roof his Devil Bringer throbs and gives off a bright, fluctuating aura.

He quickly sits up, grabs his sword and ducks behind the jutting entrance out to the roof. Peeking around it, he gets a look at Pyrrha. Still looking incredibly tense, Nero straightens up and steps out from behind the wall to talk. His expression is sour.]

Haven't you ever heard of knocking?