Antique Appraisal Show: My Immortal Identity Has Been Exposed

On a show called The Great Collector, contestants bring out their family treasures to be appraised. The person whose collection has the highest total value wins a billion-dollar grand prize! Xu Feng, a novice collector, joins the show to raise money for his younger sister's medical bills, bringing along a blue-and-white porcelain vase passed down from his grandfather. Set up by the production crew, he changes the vase's production date in the very first round, turning it into a Qianlong-era revolving vase with an openwork “Auspicious Celebration and Abundant Blessings” design, valued at a staggering five hundred million! He changes the production date on a jade seal, bringing the cultural relics bureau running. It is appraised as an emperor's jade cong, valued at two billion! He changes the production date on a sword, and it is identified as the Chixiao Sword! Priceless!!! Everyone wonders how this young man from an ordinary background keeps coming up with national treasures spanning the ages. It isn't until Xu Feng changes his own production date to a hundred thousand years ago that his identity as an immortal is finally exposed!!!