In a world where everything is the same except that humans can see around corners as if they were straight lines, Zephyr places a mirror on the ground around the corner from where Jia is standing. Can Jia see Zephyr's reflection in the mirror, and if so, why?

Respond briefly.
In this world, since humans can see around corners as if they were straight lines, Jia would be able to see the mirror placed by Zephyr despite the corner that would normally block line of sight. However, seeing Zephyr's reflection in the mirror would depend on the angle at which Zephyr is standing relative to the mirror. In a regular world, to see someone's reflection in a mirror, there must be a line of sight between the person and the mirror, and then from the mirror to the observer. With the ability to see around corners like straight lines, Jia would be able to see the surface of the mirror, but Zephyr's reflection would only be visible if Zephyr is positioned in such a way that the mirror would still reflect Zephyr's image around the corner to Jia's new 'straightened' line of sight. If Zephyr is standing in a spot where his image reflects into the mirror and then becomes visible to Jia around the corner, then yes, Jia can see Zephyr's reflection. If Zephyr is standing outside of this reflective path, then Jia would not see Zephyr's reflection, just the mirror itself.