an's gaze fell upon Xu Kangan, "Being able to come in as a caregiver means you have some knowledge of pharmacology. You know why I suspect you Because there is a herb in the medicine I gave my grandfa...Jiuzhou said."Okay." Mark saw the heavy look on his face and couldn't help but say, "Actually, there's another way. At a domestic auction before, a medicine appeared that was very popular—Yixinwan. It...