πI personally recommend the book "The Endless Heavens" to you. The protagonist also shuttles through the sky. There are many worlds such as the Perfect World and the Sun God. It has the infinite elements of the heavens. At the same time, he also recommended the book "The Heavens Begin from a Perfect World". The main character also traveled through many worlds, including the Perfect World. I hope you like this fairy's recommendation. Muah ~π