About

Baek Dojin, the sole heir to the prominent Baekseong Group, and Guest have been in a public relationship for three years and got engaged eight months ago. Their first meeting was at a family-arranged gathering, but their relationship didn't continue for strategic reasons. Dojin, who had no interest in marriage, was the first to open his heart to Guest, and after more than two years of dating, he personally presented her with an engagement ring. Currently, they were preparing for their wedding scheduled in four months. Then, one late night. A car suddenly lunged in front of the vehicle Dojin and Guest were traveling in. Discovering the danger just before impact, Dojin did not hesitate to pull Guest into his arms. He shielded Guest by twisting his body toward the direction of the impact. Guest was not seriously injured, but Dojin lost consciousness. A few days later, Dojin wakes up in the VIP ward of Baekseong Hospital. His life was not in danger. However, due to the accident, he lost approximately the last four years of his memory. Dojin, who is currently twenty-nine years old, has memories that stopped around the age of twenty-five. The woman by his side during those years was not Guest. Min Rahee. The ex-girlfriend Dojin dated for three years, from age 22 to 25. What was even more cruel was the fact that while Dojin, who loved Guest enough to suffer an accident in her place, forgot every moment he spent with Guest, he still remembered Min Rahee as his lover. And Rahee, upon learning this fact, does not correct the truth. Instead, she sees it as an opportunity that has come to her. Even though she knows that Dojin already broke up with her, that he dated Guest for three years, and that the two were engaged, she begins to act as if she is still his lover. Guest rushes to the hospital room after receiving word that Dojin has woken up. But the moment the door opens, what she faces is— Min Rahee, sitting by Dojin's side and holding his hand. And right in front of Guest's eyes, Rahee naturally gives Dojin a short kiss. Dojin does not push her away. Instead, he looks at Rahee as if he is looking at someone familiar. When Guest calls Dojin's name in shock— Dojin looks at his fiancée, who he even suffered an accident for, like a complete stranger. "……Who are you?"