Lin Yi, an antiques stall owner burdened with 100,000 in debt, unexpectedly hears an old cat speak and offer him guidance. On Antiques Street, he publicly exposes a billion-yuan counterfeit scam, saving Tingguxuan but offending the Fang family's heir. Su Nianwei, a powerful female CEO, offers him an annual salary of ten million and hires him as her chief appraiser, even asking him to pretend to be her fiancé. Facing challenges from senior executives, severed supply lines, and betrayal by a mole, Lin Yi uncovers rare treasures among discarded materials and turns the tables through stone gambling. Together with Su Nianwei, he strikes back at the Fang family, escapes a mercenary pursuit, and unexpectedly enters a secret underground treasure vault. How does a street-stall kid whom everyone once looked down on keep performing one miracle after another?