

Kang Do-hyun chooses an ordinary life as a taxi driver to avoid inheriting his father’s family business. One day, he happens to rescue Cha Eun-seol, who is fleeing a chase and has accidentally taken the wrong medication. After a one-night encounter, they part ways and return to their separate lives. Four years later, a stylish CEO shows up with a child and proposes marriage to Do-hyun. After registering their marriage, Eun-seol faces pressure from her parents to abandon the child, but Do-hyun appears and protects both mother and daughter. As her company falls into crisis, Eun-seol attends a family banquet of Taegang Group—the most powerful conglomerate in Country A—to secure a 10-billion-won investment, unaware that the chairman is actually her husband’s father. At the banquet, despite pressure from her former fiancé Gu Jung-tae, Do-hyun’s father protects his granddaughter Kang Rumi and makes his presence known, yet he can only approach her as a “grandfather” without revealing his true identity. As time passes, Do-hyun and Eun-seol grow closer. However, after failing to secure investment, Eun-seol risks both her company and her board position by making a dangerous bet with her father, Cha Myung-hwan. At this critical moment, Do-hyun seeks out his father, accepts the responsibility of becoming the heir, and begins to take action himself. In the end, at a press conference, the capital and influence Do-hyun has prepared turn the situation around. Eun-seol not only saves her company but also secures full ownership, achieving both love and success.

"My husband, Victor Shaw, once asked me to have my uterus removed so we could stay child-free together. Ten years later, he brought home a pair of adopted twins, a boy and a girl, and told me to raise them well. I said yes. From that day on, I devoted myself to those two children. When they turned eighteen, they were accepted into the most prestigious universities in the country. At their graduation party, Victor handed me a property transfer agreement and asked me to put all my assets in the twins’ names. I agreed. Just as I picked up the pen to sign, my mother pulled me aside, her face full of worry. “Lana, those two children came out of nowhere. You can’t hand your entire fortune over to them.” I said calmly, “Mom, I trust my own judgment.” My mother broke down and dropped to her knees, begging me not to be a fool. When my father realized he couldn’t talk me out of it, he slapped me across the face in fury. “You stupid woman. You’re going to ruin this family.” Then he stormed out and slammed the door behind him. I signed my name. Victor burst into satisfied laughter. Then he affectionately wrapped his arm around another woman’s waist. The woman tossed a divorce agreement at me. “Lana Grant, thank you for taking care of Victor and our children all these years. Now it’s time for you to give them back to me so our family of four can finally be reunited.” I smiled faintly. “Of course.”"