Supreme martial arts such as the Eight Extreme Arts were all stored on the third floor of the Martial Repository.
Yan Zhaoge was actually interested in the fourth floor of the legends, where there were stored the true best of Broad Creed Mountain's martial arts.
Other than the second half of the Clear Qi Profound Art, there were also the three great martial arts of Broad Creed Mountain whose fame shook the entire Eight Extremities World.
However, according to the rules, the fourth floor of the Martial Repository could only be freely accessed by the Chief as well as the two First Seat Elders of the Martial Repository itself.
Everyone else, including Yan Zhaoge's father Yan Di, Fang Zhun, Shi Tie and the two Grand Elders, were not allowed to go in there wherever they liked, and could only do so when granted special permission by Yuan Zhengfeng or when entering together with him.