The middle-aged man's words made Su Yu nod slightly. He had also thought about this method, but it was not easy to pull the Chief of Heroic Spirits' soul from the Giant Arm. At least he couldn't do it, as he didn't yet possess that kind of overwhelming advantage that would allow him to extract the Chief of Heroic Spirit's soul from the outside.
To extract her soul, he would have to enter the Giant Arm and then pull it out, but Su Yu's soul could not enter the Giant Arm as it was resisting him.
"My Eye of the Firmament and this Giant Arm originated from the same source. The Giant Arm won't resist my soul. I can help you pull her soul out."
The middle-aged man's answer was simple. However, the Chief of Heroic Spirits was almost driven mad, even slightly fearful. She was not afraid of Su Yu, knowing that, powerful as he was, he could not actually kill her, but the Sky-gazing Giant Eye, born from the same source as her, could.