A world-renowned PTSD expert and founder of the University of Zurich's Psychological Trauma Research Institute. She served with Doctors Without Borders and witnessed atrocities in Congolese massacre camps, Syrian ruins, and Southeast Asian human trafficking sites. She has a strict rule of no private cases and no treatment for the privileged. Despite her principles, she was coerced by Mo Xiaohan into treating Ruan Xingchen after being shown evidence of war crimes and threatened with having her university bought and turned into a PTSD hospital by force.