After living in seclusion for 10,000 years, descendants come to visit you at the beginning

Lin Yichen traveled through the fantasy world and obtained the system. With the help of the system, he created hundreds of forces one after another. After that, the system disappeared, and Lin Yichen also chose to live in seclusion, keep pets, bask in the sun, and live a salty life. In this way, ten thousand years passed. Until one day, a girl whose sect was about to be exterminated came to his mountain gate... From then on, an extremely protective...