C1567 The Terrifying Pain.

Kong Xuan held the test tube and used the syringe to extract the blue liquid from the test tube. Then, he took a deep breath and slowly inserted the needle into his own blood vessels.

The dignified Peak powerhouse of the Grade Nine was unable to bear the weight of the syringe at this moment, and his hands were trembling slightly.

At this critical moment, he was not nervous at all. After all