Rising novelist Anna, to escape an arranged business marriage arranged by her family, impulsively marries a stranger at random at a Chicago courthouse, little knowing that the man is none other than her intended fiancé — Vincent, the head of a publishing conglomerate. Vincent was once warmed and healed by Anna in his early years, and upon recognizing her, he deliberately conceals his true identity and lives with her as a contractual husband. When Anna takes a job at the publishing house under Vincent’s banner, she is plagiarized and suppressed by her supervisor Sarah, and later harassed by a business partner. Vincent quietly protects her behind the scenes, and the two gradually develop romantic feelings for each other through their daily cohabitation life. After Anna publicly reveals her identity as an anonymous writer and brings down the villain in her workplace, her father tells her the truth: the groom she was running away from in that arranged marriage was none other than Vincent, the man sharing her bed. By the lakeside, the two untangle the knots that have lingered for years, tear up the cold family arranged marriage contract, and make a heartfelt promise of love that truly belongs to each other.
