According to the information provided, the following novels were related to I Am a Special Forces Doujinshi: "My Military Life Begins in the Special Forces","I'm Revealed: I'm Actually the Wolf Fang Demon Instructor","Special Forces: Accidentally Entering Wolf Fang and Becoming the Strongest Soldier King","Instructor Begins in the Special Forces","Special Forces Enlistment for the Second Time","I Sign In Since I Am a Special Forces","I Become a God of War Since I Am a Special Forces", and "Super Reborn Special Forces". I recommend one of the novels to you,"The Second Enlistment of the Special Forces." It tells the story of the world of special forces, and it involves some of the plots in I Am a Special Forces. I hope you like my recommendation. Muah ~