[Setsuna happened to be right at the same hallway that Hiling came across to. When he notices her strange movements, he blinks out a little. Something was funny... But, he couldn't put his finger on it immediately.
When she collapsed right down, he perked out in silence at the unexpected sight. As reflex, he immediately walks over to check on the girl.
He'll lift her up a little now, not completely, but enough to have her sit and lean against the wall as he observes her condition. What happened to cause her to collapse?]