Because what happened next was beyond his expectations.
The Netherworld Venerate kidnapped the Yaochi Divine Lady to Immortal Valley and then left her alone. After that, he found a beautiful fox named Fox Qing and doted on her immensely. They were inseparable, and he cherished the nine-tailed fox in the palm of his hand.
The Yaochi Divine Lady spent all her days in her room, indifferent to the Netherworld Venerate. But her aloof attitude completely enraged him. One day, he dragged her out and forced her to give blood to Fox Qing because he wanted Fox Qing to bear a child for him.
Fox Qing was a demon who had cultivated for a thousand years. Due to her constitution, she could not conceive, while the Yaochi Divine Lady was the last of the Divine Race, her blood supreme.
Thus, the Yaochi Divine Lady was forced to give her blood to Fox Qing.
