He was the first experimental subject here

At this moment, the sound of chains could be heard. Yu qinghuan was shocked. She raised her head and saw the man dragging the chains on his limbs.

She took a deep breath and looked at him with wide eyes.

It was obvious that he was also an experimental subject. However, when Yu qinghuan thought about it carefully, she couldn't remember seeing him before.

By the way, those people just said he was "number 1."

The numbers of the test subjects were arranged in order of the time they were tested.

In other words, he was the first experimental subject here.

He should have died very early, right?

Most of the experimental subjects would suddenly die in the process of experiments, or die from organ failure after many experiments.