C623 Unconvinced

The black-clothed man no longer stuck together this time, and instead stood in separate positions. In this way, some of Zhang Xin's techniques could not be used.

For a moment, the lab was under a lot of pressure. No one dared to be careless. Although there was only one person, that person's martial prowess was too high. Even if the few of them combined, they would still not be able to beat him