I recommend to you the book《Ancient Godly Monarch》. The male protagonist Qin Wentian has a 4th Heavenly Layer Astral Soul-the Immemorial Star System. In this Nine Heavens Continent, cultivators could communicate with the constellations and awaken their Astral Souls, becoming Stellar Martial Cultivators. I hope you like this fairy's recommendation. Muah ~😗