Isotta allowed Kazuki to keep the girl who had collapsed and passed out in his arms, even as he agreed with her suggestion of leaving the Crimson Sky now, rather than later. It was a sensible decision overall, one she had expected would not face opposition from the resty of the group. They were experienced enough for that sort of thing.

"If there is some sort of ruse, I trust that you and any other Chasers in the area at the time will be able to handle it," she noted aloud as she began to move back towards the entrance to the Crimson Sky, the same one that they had come in, or at least she had, in the first place. 

As she did so, she addressed the other question. "I would assume it is because of the circumstances of the encounter, and how abrupt it was," she said to Kazuki. He could draw his own conclusions, but she was no more worried than she had been. If it was a trap or a ruse of some kind, they could handle it. If they were competent enough to anyway. That sort of thing was their job, not hers.