According to the information provided in the paragraph, I recommend the following two novels that are similar to Nine Yin and Nine Yang: 1. "Douluo's Strongest Ruler Emperor": The protagonist Chen Hao transmigrated to the world of Douluo Continent and became the grandson of Sword Douluo. He wanted to have a body as tough as the Dragon God's. At the same time, he also had a powerful clone skill. His goal was to overturn Spirit Hall and become a big shot in the Divine Realm. Long live posturing! 2. "The Strongest Celestial Martial Art of the Heavens": The protagonist, Du Fei, burns his merit and transmigrated to various worlds. While practicing the Nine Yin and Nine Yang, he also practiced various spells and martial arts, such as the Nine Dragons Coffin Pulling, the Heaven Covering, and the Fairy Slaying Sword Formation. In the end, he became an expert at the peak of the myriad worlds and dominated the heavens. I hope you like my recommendation. Muah ~