Qi Yu recalled, "I've never heard of such a situation."
"Many demons have already aged and died like humans," Feng Mingxi's headache grew worse. "I don't even know what the problem is."
Qi Nian thought for a moment, "Let's go to the demon realm together and take a look. The first round of the competition has just ended anyway."
Yue Zhiyin nodded, "The situation in the demon realm is not optimistic if it continues like this. We really need to take a good look."
Feng Mingxi nodded and thanked them softly.
When they all went to the demon realm together, they discovered that the situation was far more serious than they had imagined.
Most of the demons were in disarray, with many lying on the ground unable to move.
The few who were not infected were the young demon cubs.
However, Qi Yu took a closer look and found that these cubs clearly had problems too; their magical power was far below standard.
Perhaps the symptoms were milder, or for other reasons, they hadn't experienced complete mana depletion, but their bodies had stopped growing.
This could be a disaster of extinction for the demon race.
"You see the situation, and we have no idea how it started," Feng Mingxi spread his hands. "I've tried countless methods, and even consulted friends from the Underworld to have some demon tribesmen placed in their realm. But even then, there was no improvement, so it's not an environmental issue of the demon realm."
Si Qing suddenly remembered the soul gu that had just been deciphered and turned to ask Qi Yu, "Sister, is there any kind of gu technique that can be directly administered to a group of people?"
Qi Yu was stunned, "Believe it or not, there is one..."
However...
Such a gu technique administered to a group of people requires something that everyone in the group can come into contact with.
If it were in the human world, such gu techniques would mostly be placed in water.
Especially in the well water that people often drank, as every household would fetch water, the gu would develop faster. But this seemed a bit far-fetched for the demon realm.
Because the demon race was a vast species, and within the demon race, there were many other smaller tribal groups with different customs.
Some small tribal groups preferred to live in water or in frigid lands, while others enjoyed living in extremely hot places. Therefore, there were few things that all demons needed to touch or drink.
If this situation continued to spread, the demon race would be unable to generate new demonic power, gradually weakening their strength, and in the end, their territory might be occupied by other malevolent races.
"Qi Yu, is there really such a gu technique? You said there is one, which one is it?" Chi Ming pressed.
"...It should be the centipede gu..." Qi Yan suddenly interjected, "Centipede gu is just a common name, because this gu technique is like a centipede, where one gu worm can control many people."
"But to control a group of people and implant gu worms into each of them, the gu worms need to be placed in something that everyone needs to touch or consume," Qi Yan looked at Feng Mingxi. "Is there such a place in the demon realm?"
Feng Mingxi was stunned, "This... I can't think of it for a moment."
Feng Siqian and Feng Yunzui also frowned tightly.
As everyone was pondering what object was used by every demon, Qi Yu looked at Feng Mingxi, Feng Siqian, and Feng Yunzui's clothes, felt the fabric, and suddenly asked,
"Does the demon realm also have rank requirements for clothing? Do the fabrics of clothes differ for demons of different ranks?"