In the Mustachio Country and a few other small nations, they dispatched people to infiltrate this nation many years ago, not only in the Mortal Realm but also in the Cultivation World!
They entered secretly, initially using beautiful women, followed by some young people or children!
More often, they posed as merchants!
They settled in both the Mortal Realm and the Cultivation World, attempting to learn some Martial Arts and Immortal Abilities from this nation!
After many years of effort, these people hid in many places, secretly contacting one another to conspire for certain objects, and when committing murders, they'd follow orders from their superiors!
In the capital city, most of them were women who entered through various means into the noble clans of the city, they married and had children, and these women's offspring then became supporters of Country X!
Thus, generation after generation, the clans gradually fell under their control!
