Sophie marries in haste to pay for her grandmother's surgery. Ethan needs a contract‑marriage partner to hold his family conglomerate. The two accidentally get married. Their marriage certificate is ruined propping a table, and they cannot remember each other's looks a year later. Sophie becomes an intern assistant under Ethan at his company. They fall for each other at work, yet both think the other is already married. Obsessed villain Maya steals another woman's identity and is obsessed with Ethan. She hires a fake legal wife to stir up misunderstandings and traps. After kidnapping, miscarriage and constant identity confusion, they figure out they are each other's forgotten flash‑marriage spouse and beat all plots. They live happily five years later, while Maya still plans her comeback.