"Ah!" The woman suddenly tumbled off the man and rolled heavily to the ground, clutching her face. "Master, it hurts so much! Please help me, Master, it hurts so much..."

The woman was Yun Yao, the person behind the manipulation of the living dead that Yue Xiyuan had discovered more than half a month ago, and the man was Yun Xi, the junior brother of Bai Qing, Qi Po, and Jiu Gu.

Yun Yao was in excruciating pain all over her body, and the Gu worms inside her body were writhing incessantly, clearly visible.

"The Devouring God Gu is backfiring!" Yun Xi discovered that the Devouring God Gu he had planted was backfiring. His eyes were bloodshot, his fists were clenched so tightly they cracked, and he stared fiercely at Yun Yao, as if he wanted to see the person who ruined his plans through Yun Yao.

"Master, save me, Yao'er is in so much pain!" The Gu worms inside her body continued to wriggle, and Yun Yao's face was slightly distorted. She coughed up a mouthful of blood, which was mixed with a lot of Gu worms.

Yun Xi immediately took out a pill and fed it to Yun Yao, which stabilized her breathing, but she was still in great pain all over her body.

"I previously planted several Gu in your body to stabilize the mother Gu of the Devouring God Gu, preventing you from turning against me before the seed Gu had fully formed. I don't know which brat managed to break my Gu technique. I need to plant another Gu in your body to stabilize the Devouring God Gu within you, so you can still control other people's minds. Yao'er, would you like it?"

After being banished from the mountain by his master, Yun Xi arrived in the Southern Border. He accidentally stumbled upon a strange tribe, far removed from worldly affairs and renowned for their Gu (poisonous insect) cultivation and Gu techniques. To obtain their family's most precious treasure, the Gu Manual, he slaughtered their entire village. Later, he cultivated Gu techniques, using Gu to repair his meridians and begin cultivation anew. An unexpected encounter led him to find a woman with an extremely Yin constitution by the roadside—the present-day Yun Yao. The success or failure of Gu cultivation depends on the sincerity of the Gu's vessel. Yun Xi wanted Yun Yao to become the Gu's master, so he cared for her meticulously. Years of companionship day and night fostered different feelings in Yun Yao towards her master, leading her to willingly raise Gu for Yun Xi. From then on, the two became a unique kind of "family."