The outdoor BOSS that Huang Yi mentioned was none other than Man Lie.
In recent days, Man Lie had been constantly guarding the city gates, waiting for him to leave the city to exact vengeance for his slain child. Without killing Man Lie, he would never be able to leave Thornbush City. With Man Lie's capabilities, even if he used another city gate to leave, he would still be chased down.
But with Huang Yi's power alone, it was nearly impossible to kill Man Lie, and he couldn't possibly release the criminals from Heroes' Prison to help. Man Lie wouldn't be foolish enough to fight to the death. If it couldn't win, it would definitely hide. After all, this wasn't its Wind Forest Stronghold; it had no need to protect the territory's safety. Once Man Lie fled, there would be no one left to kill the criminal, and Huang Yi, the Prison Warden, would have failed his duty.