In " The Eight Demigods ", the Carefree Sect was a very important sect. Its founders were Wu Yazi and the Heavenly Mountain Tonglao. The martial arts of the Carefree Sect focused on internal energy and emphasized the way of nature and governance by inaction. Therefore, it was known as the world's martial arts ultimate in Jianghu. The reason why the Carefree Sect had such profound martial arts could be explained from the following aspects: The founders of the Carefree Sect, Wu Yazi and the Heavenly Mountain Tonglao, were both top experts. They had mastered extremely advanced martial arts when they were young and had further improved their cultivation after a long period of practice. This long period of cultivation and constant self-exploration allowed them to master the unique martial arts style and techniques of the Carefree Sect. The Carefree Sect emphasized the cultivation of internal energy, emphasizing the way of nature and governing by inaction. This thought was in line with the cultivation method of the founder of the Carefree Sect, Wu Yazi, and the Heavenly Mountain Tonglao. Therefore, when they practiced martial arts, they paid attention to the cultivation of internal strength and inner perception. The unique martial arts style and techniques of the Carefree Sect were also an important reason for their possession of the world's martial arts. The martial arts style of the Carefree Sect was flexible and flexible, and focused on the application of techniques and the transmission of artistic conception. This unique martial arts style and technique made the Carefree Sect unique in the Jianghu and was known as the world's martial arts ultimate. To sum up, the reason why the Carefree Sect had the world's martial arts was because its founders, Wu Yazi and the Heavenly Mountain Tonglao, had extremely high martial arts cultivation, unique cultivation methods, and the idea of paying attention to internal cultivation. At the same time, their unique martial arts style and techniques were also an important reason why they became the world's martial arts.