Zhang Qiusan, a former fighting genius in Xiangyang City, was deceived by a mysterious old man into a grotto and practiced hard for five years, living on nothing but moss every day. In the end, he only earned the shameful title of a "third-rate warrior". At the age of twenty-eight, he returned to his hometown with nothing accomplished, only to find that the poverty-stricken road he was once familiar with had been infiltrated by Jianghu forces such as the Moon Shadow Palace, and his former friends were reduced to oppressed businessmen who dared to be angry but dare not speak out.
By some mistake, Zhang Qiusan relied on his father's reputation as the "spiritual warrior" Zhang Youre to join the most elite and dangerous "lost bead recovery team" of the Qinghai Fulong Escort Bureau. He also happened to occupy the cursed "Locker No. 6" - All the masters who had used it before had died unexpectedly. At the same time, Hai Yun, the great disciple of Huashan Sect who has lost his memory, Beigong Danye, the young master of Tianshan Villa who has disguised his identity, and Yu Jin, a mysterious handsome man, all forces gathered in Xiangyang City, and an undercurrent related to the "Flying Blood Book" and the catastrophe of the martial arts was surging.
