INFORMATION CONTAINS SPOILERS, INFORMATION UNAVAILABLE 

A resident and scholar of the Citadel, a close friend of Hone and Ninth. Appearing as an anthropomorphic ape-like creature, Tau is the tallest Ant in her community. She deeply studies Regna's influence on humans and its nature, and while she doesn't strictly adhere to the SRD's policies, she still lives and works in the safe zone for the sake of peaceful research. 

Tau has been studying Hawn for a long time, recording everything from her very first day in the Citadel.