The Secret Heir's Revenge: Divorced by Mistake

Arthur is a broke man who can't even afford three days of hospital medication; his ex-wife Chloe beats and curses him at will, and his eight-year-old biological daughter Mia survives under the abuse of her stepmother and stepbrother Max. The Pendelton family's butler, Mr. Vance, comes knocking to inform Arthur that he is the family's youngest son, missing for twenty years — his identity confirmed by DNA. The hundred-billion trust now belongs to him, but during the probation period, every cent may only be spent on himself; give a single penny to an outsider and the inheritance is zeroed out. Arthur accepts the black card and saves his daughter indirectly by "spending on himself": buying a Bugatti to intimidate his ex-wife, purchasing an eighty-million-dollar mansion to establish a base, acquiring all the shares of Mia's school, and assembling a legal team to file for custody. Chloe's clan — her mother Eleanor, her brother Damon, and stepson Max — counterattack ferociously: livestreaming pity plays, holding Mia hostage as a bargaining chip, and colluding with Arthur's cousin Julian from the inside. Arthur advances methodically: a stop order freezes their movements, he crushes Chloe in court with six million in debt and medical injury reports, and an emergency custody order brings Mia back to him. His cousin Julian forges DNA reports, bribes judges, and hires private detectives to tail Mia — Arthur hands the evidence anonymously to the FBI, and Julian is jailed for fifteen years. Mia finds new life in the Pendelton mansion, growing from a timid, abused girl into a brave young woman who dares to say "no." Arthur establishes the "Spark Children's Foundation" in Mia's name, writing philanthropy into the family charter. Chloe works at a coffee shop to atone, and Max is sent to a technical school to learn welding and repay his debts. In the end, at the school-year performance, Mia thanks her father for teaching her "what it feels like to be loved," and the family, each in their own place, finds reconciliation and new life.