The Black Death Blade, through Liu Shan, at most knows his general situation.
Shen Wang stroked his chin, recalling the last time they joined forces with the Black Death Blade King to slay the Black Water Stronghold thieves who besieged the ancestral land.
Back then, he used the Black Death Gu Poison to break the siege of that group of thieves. Afterward, he asked Liu Shan to help with the cleanup, not expecting the Black Death Blade King to take the opportunity to infiltrate Liu Shan's body with Gu poison, turning him into an eye beside him.
He suspected Liu Shan didn't even know he was affected by Gu poison, similar to the Village Chief, Gong Yu at the time, becoming a puppet.
Therefore, he wasn't in a position to directly kill Liu Shan; Liu Shan had suffered hardships for him. The best way was to resolve the Black Death Gu Poison.