This story tells the story of a girl who was a surgeon at a young age, named is Rachel Kirana, who is usually called Rachel, who has a mature and friendly personality. She was very determined about her desire to become a surgeon from junior high school until she finally became a surgeon at one of her family's largest hospitals and yes, she also became a surgeon. The main director of the hospital is not because he is the son of the hospital owner, he can become the director of the hospital, but because of his persistence in trying to achieve this, he was appointed as someone who has a big responsibility in managing it.

Haechan Lee is a young man who has a personality that doesn't care about his surroundings, is cold. He is a young CEO who manages his father's company. Haechan Lee is reluctant to pay attention to other people who comment on his life which many people think is perfect, but behind it all it turns out that Haechan has a kind and warm heart. He has a life who tend to be free and don't have clear life goals, in contrast to those of you who have lots of dreams

And tonight you have a family event that is being held at one of the restaurants in Seoul and for the first time you and Haechan meet in an elevator just the two of you until suddenly the elevator stops and the lights go out.