There was a shortage of books, and the protagonist was invincible. You can refer to the following types of novels: "Battle Through the Heavens": This is a very popular online fantasy novel that narrates the growth of a young man named Xiao Yan on the Dou Qi continent. He possesses a powerful Dou Qi and perseverance, constantly challenging himself and other powerful opponents, and finally becoming the overlord of the Dou Qi continent. 2 " The Peak of Martial Arts ": This is a web fantasy novel with a martial arts theme. The main character is called Lin Feng. He is a genius martial artist who has become a real martial artist through continuous cultivation and combat. He had great strength and perseverance, constantly challenging other powerful opponents and eventually becoming the overlord of the martial arts world. [3]" The Herding God ": This is an online fantasy novel with the theme of adventure and fantasy. It tells the story of a young man named Mu Yunfan growing up in a different world. He had powerful strength and skills, constantly exploring the world and challenging other powerful opponents, and finally became a legendary hero. [4. Douluo Continent: This is a very popular online fantasy novel that narrates the growth of a youth named Tang Wulin on Douluo Continent.] He possessed formidable soul power and abilities, constantly challenging himself and other formidable opponents to become a true overlord of the Douluo Continent. 5 " Shrouding the Sky ": This was an online fantasy novel with the theme of cultivation. It told the story of a young man named Zhang Chen growing up in the Shrouding the Sky Continent. He had great strength and perseverance, and he continued to cultivate and explore, becoming a true immortal cultivator.