From Pathfinder Lost Omens Tian Xia Character Guide, which isn't enabled.

Nalinivati's Light

FEAT 1

Your slit eyes expand to absorb light and can see in the darkest of places. You gain darkvision.

Special You can select this feat only at 1st level, and you can't retrain into or out of this feat.

Pathfinder Lost Omens Tian Xia Character GuideORC