Perhaps you are talking about "Douluo's Azure Dragon Defies the Heavens!" This was a light novel, a derivative doujinshi novel. The main character Qin Feng was reborn in the Douluo Continent world and obtained the Heavens Sign In System. Later, he awakened the Eight-Winged Angel at the beginning. I hope my answer will help you find this book. I hope you like this fairy's recommendation. Muah ~😗