The reason Ye Shuangshuang hasn't made a move yet is because of the Ye Family. Whether it's Ye Feiying, Shen Family, or Bai Menghan, their health is too poor. If they enter places rife with epidemics, they're sure to catch the disease.
And what is called an epidemic is not an easy illness to treat; its most crucial characteristic is that current prescriptions can't cure it. We must develop a new formula in the shortest time.
Given the health of Ye Feiying, Shen Family, and Bai Menghan, if they get infected, chances are they won't live to see the formula for treating the epidemic be developed. So they can only wait in place.
However, waiting in place is also not easy. Without her being around to constantly check pulses and adjust their health, it's uncertain if the health of the Ye Family will deteriorate again.
