The story of the movie "A Seoul unknown" revolves around twin sisters Yoo Mi Ji and Yoo Mi Rae (Park Bo Young plays 2 roles). Although they look similar in appearance, Mi Ji and Mi Rae have opposite personalities and lives.
After knowing that her sister was having difficulties at work, Mi Ji decided to change her identity with her. Thanks to that, they know many hidden corners of each other and understand better when looking at the world and life from the perspective of others.
After 6 episodes, the film "A Seoul unknown" made viewers sympathize with its layered, profound script, when not only the main character but also the supporting characters were built in detail.
That was Mi Rae - who spent most of her childhood in the hospital due to congenital heart disease. She is always grateful to her family for taking care of her.
This is also the reason why she tries hard to study, pass the entrance exam to a prestigious university and get a stable job to be able to take care of her family. However, contrary to the perfect things that people in this world see, Mi Rae's life is quiet and unstable because of her colleagues' isolation.
As Mi Ji - who was born healthy and always dreamed of becoming an athlete. However, Mi Ji had to put everything aside after suffering an injury. After the accident, from a happy, strong girl, Mi Ji became depressed and could not leave the room for 3 consecutive years. After her accident, Mi Ji tries to move forward.
As Ho Su, a vulnerable young man who is always ted as a lake after a car accident; as Se Jin who accepts to give up everything in Seoul because he wants to take over his farm. As Mi Ji's mother, Mi Rae - who always worries about her children, but accidentally hurts them in a way she herself did not expect...

From the stories of the characters, many people realize that, no matter what age, we can experience fatigue and pain. However, the most important thing is still how she has to move forward, as Mi Ji's grandmother encouraged her when her grandchild stayed in the room for 3 years: "I am also hiding it to survive. No matter how miserable or messy he looks, whatever he does to keep living is a thing of the past.
Or even, simply be lenient and kind like the way you are treating others. As Mi Ji said: For a long time, I was more strict with myself than anyone else, just because I was me. It was not until I lived in the role of another person that I realized that my biggest enemy was myself.
Familiar stories, meaningful details, and easily-built characters with depth make A Seoul unknown score points with viewers. This is also the first reason why the film screenwriter - Lee Kang started his story.
Everyone feels that their life is the most difficult, but in reality, each person is fighting their own battle. Through the character's journey to adulthood, comfort and learn to love oneself, I hope the film will somewhat heal modern young people" - the author said.