Clearing the distracting thoughts in the evil demon blood essence was not something that could be done in a short period of time. Tang Zhen only needed to release a portion of it to allow himself to move freely.
Although this kind of thing was a scourge, if used well, it could be used as a weapon to kill enemies.
If these evil distracting thoughts had appeared earlier, Tang Zhen wouldn't have needed to use the monsters in the forest to clean up the city. He would only need to release the monsters formed by these distracting thoughts.
If he really did that, no one in the city would be able to escape. It would instantly become a ghost town.
After all, the source of these evil thoughts came from the powerful cultivators of the demonic plane. Although they were not as strong as the world of loucheng, they were not too weak.
