"You... She. Asked for me?" It's not surprising on his sister's part, of course. It's something she would do. She was always looking after him, even now that he should be looking out for her instead.

The train (the 'system'?) could be asked to bring on specific individuals? He hadn't heard of this yet. Though it seems to have answered her prayers with a trade. That's not right, and it's not fair to her. She deserves to be in a place that will keep her safe far more than he does.

Wen Ning doesn't know how to take this information. He stares down at the floor, brows knit in frustration and eyes wide in incomprehension. If the train could send her away, it had to be return her. "What did you do? W-we have to get her back!"