To keep her animal shelter and her U.S. visa, Chloe maintains her engagement to her cheating ex-boyfriend, Liam. After discovering his affair, she has a chance encounter on the street with corporate heir Alexander and, on impulse, claims he is her new boyfriend. Learning that Alexander is trapped in a PR crisis and needs the shelter's spotless image, Chloe proposes a fake marriage: she helps him restore his reputation, and he gives her a green card. The two sign a contract and move in together, rehearsing endlessly before the immigration interview, yet their feelings quietly deepen as they spend time together.
Liam repeatedly sabotages them: he steals her old phone to sync their private photo, crops the date from her diary to twist its meaning, fabricates a bank transfer and an AI recording to frame Chloe, and even poisons the dog food and colludes with Alexander's grandfather and his sworn enemy, Vance, sowing endless misunderstandings between the couple. Chloe discovers the truth behind the pawnshop receipt—she sold the diamond ring and luxury goods, secretly funneling the money back into the company to save Alexander—and only then does he realize she never betrayed him. Alexander strikes back, acquiring his grandfather's shares and exposing every conspiracy.
In the finale, Liam sets the shelter on fire for revenge. Alexander rushes into the flames to save Chloe, and the two finally end up together. The new shelter is completed, and they hold a real wedding witnessed by all the dogs.
