Ghost Ming was already afraid when he saw Yi Yun using the Divine Blood Origins to restore his strength. He had planned on casting a mystic art to leave silently, but he never expected Yi Yun to notice it.
"Senior Ghost Ming, you were already injured previously, but you refused to leave. Were you trying to stay behind to pick up the spoils? Now that there are no spoils to pick, are you planning on leaving?"
Yi Yun converged his aura as he stored away the blob of Divine Blood Origins.
Yi Yun's addressing of Ghost Ming as senior made Ghost Ming feel like his face was smacked swollen. He had indeed stayed in hopes of picking up the spoils while observing the situation.