C548 I'm overjoyed

It was a black pellet and a faint medicinal fragrance was emanating from it. From the markings on the pellet, it was clear that it was a rank 3 pellet. However, the pill did not look like a normal round pill, but a rare round pill. No one could tell what kind of medicine it was.

Li Yihui could not determine the medicinal properties of the pill just by looking at it, so he asked