To save her sick brother, designer Ivy signs a one-year contract marriage with cold-faced CEO Alexander. Inside the family, cousin Marcus and socialite Stella take turns setting traps — plagiarism accusations, destroyed sample dresses, identity humiliation — but Ivy fights back with skill and brains every time. Alexander, who started as a mere contract partner, slowly falls for her, quietly deflecting every arrow meant for her. When Marcus leaks the contract to the public and the internet erupts, Alexander asks for a divorce to protect her. Thrown out of the mansion, Ivy doesn't fall. She stages a guerrilla street show with discarded fabric, and from Marcus's former subordinate Leo she obtains the evidence chain: embezzlement, media manipulation, the whole plot. At the boardroom showdown, Ivy returns with the evidence and takes down Marcus alongside Alexander. On the globally livestreamed runway show, Alexander tears up the contract in front of everyone and drops to one knee — this time, not a deal, not obligation. It's love. The Cinderella didn't wait to be saved. She took back her own crown.