Traveling Through the World of Immortality, Why Do You Still Need to Be a Security Guard?

[Time travel + system + pretending to be a pig and eating a tiger + a wild goose plucking its feathers] Su Chen accidentally traveled to the world of immortality and successfully activated the system. "Ding!" "Congratulations to the host for successfully activating the system." "Please host complete the security mission in time!" In order to improve his cultivation, Su Chen had to pick up a security stick to maintain order in the world of immortality. From the third-rate sects to the Holy Land of Zhongzhou, no one knows the name "Su Thuan". Su Chen was promoted step by step from a mortal to the legendary realm of true immortals. The story has become a "good story" in the world of immortality.