Four years ago, working-class girl Serena was framed by aristocrats and driven out of Britain; four years later, she returns to London in glory as the "uncrowned queen" of Europe's top luxury PR empire, and directly dumps her three-year-old genius hacker cutie on the aloof Crown Prince, signing a "two-week childcare contract"! When British high society prepares to watch her become a joke, the super-smart cutie wreaks havoc in Buckingham Palace, publicly exposing the green-tea rival's fake crown, helping Mommy slaughter her way through the socialite circles. The Crown Prince, upon learning the truth of that year, fully transforms into a "crazy wife-protecting madman," ruthlessly settling accounts with the betrayers. Faced with the villains' death throes in collusion with overseas oligarchs, the family of three joins forces, staging an extreme counter-kill on a global livestream. In the end, Serena conquers the hidebound royal family with her unmatched finesse, forcing the King to abolish the old rule that commoners cannot become consorts — becoming the first Crown Princess in British history beloved by the entire nation, and the family of three meet at the summit!
