The concept of the five elements (Fire, Water, Lightning, Wind and Earth), which works in a way similar to the Wu Xing in Chinese philosophy, is also applied in the game.
Fei Peng hesitates, because he will break Heaven's laws if he agrees, but eventually succumbs to temptation.
Fei Peng is punished for breaking celestial rules by banishment from Heaven into the human realm.
Fei Peng, now an ordinary human being, goes through the cycle of life and death numerous times, and is eventually reincarnated as Jing Tian, a young pawnshop worker in Yuzhou.
He joins them in their quest to find the five elemental pearls, which can seal all evil spirits and monsters in the Monster-Locking Tower.