Of course there are. There are many Doujinshi novels on the Douluo Continent. I would like to recommend a few to you: "Douluo's Highest Grade Martial Soul","Douluo's Martial Soul Armor Warrior","Douluo's Avatar, Douluo", etc. Different authors have different stories and plots. You can choose one that you like according to your taste. I hope you like this fairy's recommendation. Muah ~😘