He was careless. When Jin Sheng used the Thunder-Attracting Sword to defeat the two, he should have followed up with two more strikes to remove the demon cores from their chests.
But at the time, Baili An hadn't realized that these two weren't actually alive.
Unlike the hunter, they had normal human heartbeats and body temperatures. It seemed their demon cores might be of a higher class than the one below the hunter's chest.
After pondering for a moment, Baili An looked down at the Yuanli Sword in Jin Sheng's hand and said, "Constantly fleeing is not a solution, Jin Sheng. Your Heavenly Tribulation is suppressed within the Yuanli Sword, does that mean as long as the sword is drawn, it could trigger the tribulation?"
Jin Sheng nodded, "That's correct, but I no longer have the strength to draw the sword."
Baili An stood up, very pleased with this answer, and smiled, "There's no need for you to do it; I'll draw the sword."