A delivery driver young man actually makes the 120-year-old wealthy family ancestor weep publicly and call him, Sir. What is even more bizarre is that a hundred years have passed, and his appearance has not changed in the slightest. As prohibited drug trials, underground drug dens, a centennial registry, a mysterious organization, and missing old acquaintances surface one after another, Mu Guang realizes that he was never an outsider. The Gu family, the Chen family, the Longevity Network, all clues point to the same secret. This hunt surrounding longevity has lasted for a full hundred years, and the true prey might have been him all along.