Player Yuan's Sister

"Before we begin, I should let you know that this is based on one ancient medicine book I read in the past, as this is the first time something like this has happened in our medical history," Doctor Wang said with a serious expression.

"Ancient medicine book?" Yu Rou raised her eyebrows, unsure of how to feel about this.

"Yes, the black gunk that came out of the Young Master's body are impurities— filth that gathers in one's body over time— similar to the filth that gathers on one's face and their pores naturally, but this impurity is much more filthy and impotent, and it is something that normally cannot be cleaned from one's body, as it gathers deep within your body."

"Then why did it happen to my brother?" Yu Rou asked afterward.

"Honestly, I don't know." Doctor Wang shook his head, feeling a little shameful that he had to say such words as one of the best doctors in the world.

"Not even that ancient medicine book mentioned anything?"