An ordinary young man from the modern era unexpectedly obtains a “Key to Time and Space” that lets him transmigrate between the past and present. Yet each time he does, only one hour passes in the modern world.
Main plot: The protagonist discovers that each transmigration seems to point toward a shocking secret spanning five dynasties: the Order of Time, a hidden organization seeking to rewrite history and overturn reality. He must stop its schemes and protect the stability of the timeline.