As the heir of a hidden Taoist sect, Su Chen is ordered to descend the mountain to face a heavenly tribulation together with his fiancee. Financially strapped, he accidentally binds with the Mission Accomplished system, becoming a food delivery rider. Along the way, he happens to encounter his fiancee being held hostage by thugs, resolving the crisis using the supreme martial arts, clairvoyant abilities, and exquisite medical skills bestowed by the system. He confronts arrogant wealthy youths, captures major criminal suspects, recognizes treasures in the jade market, and breaks evil formations. Facing heavy tests brought by several women of different personalities around him, Su Chen stays true to his original heart, using his own abilities to guard the realm and growing into the guardian of the nation.