"Um... Jack?

Wouldn't I die too, then? I'd prefer it if that didn't happen."

A flustered Jack shook her head from side to side.

"I-It's all right, it's all right! You'll be fine, Mother!

This mist can be 'directed'. So it won't get close to you."

As Jack said, the enveloping mist, which had already gained a deep color, left a blank space in the area around Reika.

- Fate/Apocrypha: Unbirth