Executing the Natal Technique and the Heart-Devouring Curse would benefit Zhou Chuan without causing any harm; at the very least, he wouldn't need to worry about You Li plotting against him, which made him quite willing to do it. You Li knew very little about human cultivation secret techniques, but relying on her Heavenly-grade bloodline, she wasn't afraid of these human methods. Humans and demons were different, and she guessed that this secret technique would only be half as effective on her at most.
Once the Natal Technique and the Heart-Devouring Curse were completed, Zhou Chuan felt exhausted, but two seals had sunk into You Li's soul sea. When she tried to generate the thought of framing Zhou Chuan, her soul sea froze instantly, sealed away by the burst of light from the seal.
"The Natal Technique links my vitality directly to yours. If I die, you probably won't survive either," Zhou Chuan explained only then.
Chapter 841