What Makes Them Come to Shanghai for Half-month Quarantine?

700 years ago, 17-year-old Marco Polo, arrived China following his father and uncle after 4 years’ long trip. The Travel of Marco Polo unveiled the mysterious oriental world for the whole Europe at that time. Now 700 years later, a man with the same name, Marco, and his business partner visited Shanghai from Naples, after a stopover in London and 14 days of quarantine…what for?