The four major tomb robbing sects (Mojin, Faqiu, Moving Mountain, and Xiling) reunited in Caoxian County because of the "Five Elements Heavenly Coffin". Each coffin corresponds to the five unlucky situations of gold, wood, water, fire, and earth, and anyone who touches it will suffer backlash. The coffin contains the "Chalcedony of the Past" that can reverse life and death, but it can only be opened by collecting the Five Elements Formation Eyes.
