C619 Black Blood

Lee Yixuan was extremely focused. Cold sweat kept dripping down his forehead. He was also very nervous. He couldn't afford even the slightest mistake. From the looks of things, they were progressing smoothly.

This process continued for several minutes.

Although it was only a few minutes, it felt like a century to Lee Yixuan. Finally, Lee Yixuan was about to reach the final step