Over the next two months, Shang taught the barbarians quite a bit about fighting in a group to please the Mages. As long as he was in their good graces, nobody would suspect his loyalty.
With Shang's power, it wasn't difficult to gain the respect of all the barbarians.
Just as promised, Shang received one fire beast heart every two weeks, giving him enough resources to increase his power by a lot.
The beast Mana was difficult to deal with, but the Procedure allowed Shang to absorb even more Mana than normal. For the remaining Mana, Shang had to actively drive it out of his body, which took a lot of effort.
However, he still managed to clean himself of the beast Mana just before he got the next heart.
Two months after arriving in the Plague Rat Zone, Researcher Veral began to experiment on Shang. He didn't perform surgeries or anything on him, but he kept testing Shang's threshold regarding strengthening Magic.