Ever since Sister Rong Sheng gave her that book, she had started researching and, using the set of tools left by Long Shuli, she had actually developed antibiotics.
Chu Yihan had already cleared the path, and now they were only separated by a wall that had collapsed between them and Rong Sheng and Chu Yifeng.
With a single palm strike, Chu Yihan created a hole big enough for Su Yingxue to pass things through.
Rong Sheng's medical skills were on par with her mother's, so she was naturally capable of saving Chu Yifeng.
Su Yingxue then reassured Chu Yihan, "Your Highness, rest assured, Sister Rong Sheng won't let Chu Yifeng die."
Chu Yihan hummed in acknowledgment, then his probing gaze landed on her. "Can you tell Your Highness where these medicines come from?"
