Perhaps it was because of the novel "Dragon King Palace" written by the author, Pig Climbing Tree. It was about the protagonist Luo Chen dominating the world of immortals, Luo Beiji. He was called the North Pole Dragon King by the myriad worlds and founded the Dragon King Palace. However, he was reborn to Earth's high school age due to the heavenly tribulation and began his cultivation journey on Earth and his gradual integration into Earth's civilization. I hope you like this fairy's recommendation. Muah ~😗