[Kdrama] Our Unwritten Seoul Cast & Plot Summary Ending & Filming Location 2025

In Seoul, a city both unfamiliar and familiar, unfolds the life-changing story of twin sisters! Following Resident Playbook, tvN’s new weekend drama Our Unwritten Seoul tells the unpredictable romantic coming-of-age tale of identical twin sisters Yoo Mi-ji and Yoo Mi-rae (Park Bo-young takes on a dual role!), who, despite looking exactly alike, have completely different personalities and lives. When they decide to swap lives, their worlds are turned upside down.

Mi-ji (played by Park Bo-young), the younger sister, lives freely in the rural village of Duseon-ri, but is constantly compared to her older sister Mi-rae (also played by Park Bo-young), who works in Seoul. Contrary to everyone’s assumptions, Mi-rae is actually struggling and on the brink in the harsh reality of Seoul life. Upon learning about her sister’s difficult situation, Mi-ji proposes a secret pact: “Let’s switch lives for a few months!” This lie between the two sisters sets off a whirlwind of chaos that shakes both Seoul and Duseon-ri…

Here is an introduction to the filming locations and storyline of Our Unwritten Seoul.

Our Unwritten Seoul

Korean 미지의 서울 | 未知のソウル
Genre: Romantic Comedy, Coming-of-Age, Healing, Human
Airtime: Saturday & Sunday / 9:20 PM ~
Broadcast Period: May 24, 2025 ~ June 29, 2025
Number of Episodes: 12
Planning: Studio Dragon
Production Companies: Monster Union, High Ground
Channel: tvN
Directors: Park Shin-woo, Nam Geon
Screenwriter: Lee Kang
Cast: Park Bo-young, Park Jin-young, Ryu Kyung-soo, etc.
Filming Period: October 2024 ~ April 28, 2025 (Pre-produced)
Network: TVING, NETFLIX

Our Unwritten Seoul cast

Yoo Mi-ji / Park Bo-young

The younger of the identical twin sisters, Mi-ji lives in the rural village of Duseon-ri, working odd jobs around the community without a proper occupation. She is constantly compared to her older sister Mi-rae, who works in Seoul, but Mi-ji has a bright and free-spirited personality. Upon discovering her sister’s harsh reality, she proposes a secret pact to swap lives, kicking off the twins’ web of lies.

(Park Bo-young will portray four different faces: Yoo Mi-ji, Yoo Mi-rae, and each sister pretending to be the other.)

Yoo Mi-rae / Park Bo-young

The older of the identical twin sisters, Mi-rae works in Seoul and appears to lead a successful life. In reality, however, she is pushed to the edge by the hardships of city life. At Mi-ji’s suggestion, she goes down to Duseon-ri and lives as Mi-ji, experiencing a new life she never expected.

Lee Ho-soo / Park Jin-young

A top lawyer at a major law firm, Ho-soo has striking looks and an effortlessly cool demeanor. On the surface, he seems flawless, but in truth, he works harder than anyone else to lead an ordinary life. He is a high school friend of the twin sisters, with whom he once shared pain, and after a chance encounter with Mi-ji in Seoul, he gets caught up in the twins’ secret pact.

GOT7 Jinyoung Instagram

Han Se-jin / Ryu Kyung-soo

A novice owner of a strawberry farm. He has little talent for farming and carries a distinctly urban vibe. He becomes involved with Mi-rae, who is pretending to be Mi-ji in Duseon-ri, as her employer. His clumsy hands and suspicious air make Mi-rae’s instincts tingle. His true identity and story add intrigue to the drama.

Ryu Kyung-soo Instagram

Other Cast of Our Unwritten Seoul

Details

Kim Rosa / Won Mi-kyung

70-year-old woman, owner of a chicken gizzard soup restaurant and the landlord of Rosa Restaurant.

Lee Chung-gu / Im Chul-soo

43-year-old man, managing partner of the law firm Wongun and Ho-soo’s senior.

Park Ji-yoon / Yoo Yoo-jin

30-year-old woman, works at J Card, high school friend of Mi-ji and Mi-rae.

Song Kyung-gu / Moon Dong-hyuk

30-year-old man, deputy manager at Kyung-gu Mart, Mi-ji’s ex-boyfriend and current best friend.

Kim Ok-hee / Jang Young-nam

54-year-old woman, elementary school lunch chef, mother of Mi-ji and Mi-rae.

Yeom Bun-hong / Kim Sun-young

54-year-old woman, vice principal at elementary school, Ho-soo’s mother.

Kang Wol-soon / Cha Mi-kyung

80-year-old woman, grandmother of Mi-ji and Mi-rae.

Choi Tae-gwan / Jung Seung-gil

50-year-old man, director of the Planning and Coordination Bureau at Korea Financial Management Corporation.

Shin Kyung-min / Lee Si-hoon

47-year-old man, team leader of the Strategic Planning Team at Korea Financial Management Corporation.

Ahn Mi-jung / Actress TBD

Woman in her 30s, senior member of the Strategic Planning Team at Korea Financial Management Corporation.

Hwang Yoon-ho / Yang Dae-hyuk

Man in his 30s, senior member of the Strategic Planning Team at Korea Financial Management Corporation.

Lee Hyo-kyung / Shim So-young

Woman in her 30s, senior member of the Strategic Planning Team at Korea Financial Management Corporation.

Kim Tae-yi / Hong Sung-won

28-year-old man, data analyst in the Strategic Planning Team at Korea Financial Management Corporation.

Hwang Ji-soo / Actress TBD

40-year-old woman, law firm secretary, Ho-soo’s personal assistant.

Jo Myung-gap / Jung Eun-pyo

68-year-old man, head of the Duseon-ri Youth Association.

Gong Il-nam / Actor TBD

42-year-old man, member of the Duseon-ri Youth Association, runs Mojong Market.

Kim Soo-yeon / Park Ye-young

35-year-old woman, former senior member of the Strategic Planning Team at Korea Financial Management Corporation.

Our Unwritten Seoul filming location

Mungyeong

Gyeongsangbuk-do Mungyeong-si Danggyo-ro 2255

Damyang Subuk Elementary School

Jeollanam-do Damyang-gun Subuk-myeon Chuseong 1-ro 714-3

Suncheon Drama Filming Set

Jeollanam-do Suncheon-si Jorye-dong Biregol-gil 24-4

Seoul Station

405 Hangang-daero, Yongsan-gu, Seoul

Cheonggye Plaza (Seoul Lantern Festival)

14-12 Seorin-dong, Jongno-gu, Seoul

The Seoul Lantern Festival is one of Seoul’s representative winter night festivals, held annually around Cheonggye Plaza and Cheonggyecheon Stream. First launched in 2009, the festival is now in its 16th year. It lights up the winter nights along Cheonggyecheon with beautiful illuminated installations and a variety of hands-on programs, making it a famous spot for photography as well. Unfortunately, the festival is only held during the winter each year.

Banpo Hangang Park

122-1 Jamwon-dong, Seocho-gu, Seoul

Other Filming Location

Other Filming Location 100 Details

Gwangtonggyo Bridge Near 124 Seorin-dong, Jongno-gu, Seoul

Dongjak Bridge 20-1 Dadong, Jung-gu, Seoul

DukSan Middle School, Doosan We’ve Apartment Bus Stop (12499) : 12499, Songjung-dong, Gangbuk-gu, Seoul (Naver Map link)

Jeungsan Seo-gil : Jeungsan Seo-gil, Jeungsan-dong, Eunpyeong-gu, Seoul (Naver Map link)

Jeungsan-dong Alley : Jeungsan-dong Alley, Eunpyeong-gu, Seoul (Naver Map link)

Anjja : Yeonnam-dong, Mapo-gu, Seoul (Naver Map link)

Gwangsan Mansion : Yeonnam-dong, Mapo-gu, Seoul (Naver Map link)

Swiss Grand Hotel : Magok-dong, Gangseo-gu, Seoul (Naver Map link)

Death Tool Yeonhui : Yeonhui-dong, Seodaemun-gu, Seoul (Naver Map link)

Junmu Yeonnam : Yeonnam-dong, Mapo-gu, Seoul (Naver Map link)

Brown Front Door : Yeonnam-dong, Mapo-gu, Seoul (Naver Map link)

Mystery Brewing Company : Yeonnam-dong, Mapo-gu, Seoul (Naver Map link)

Mapo Bridge : Mapo-gu, Seoul (Naver Map link)

Yeouidaero (in front of LG Twin Tower) : Yeouido-dong, Yeongdeungpo-gu, Seoul (Naver Map link)

Manhole Coffee : Mangwon-dong, Mapo-gu, Seoul (Naver Map link)

JK Art Convention : Mullae-dong, Yeongdeungpo-gu, Seoul (Naver Map link)

Diar Maker Mullae : Mullae-dong, Yeongdeungpo-gu, Seoul (Naver Map link)

Vinyl House : Mullae-dong, Yeongdeungpo-gu, Seoul (Naver Map link)

Tables Yeongdeungpo-gu Office Branch : Yeongdeungpo-dong, Yeongdeungpo-gu, Seoul (Naver Map link)

Gangbyeonbuk-ro : Oksu-dong, Seongdong-gu, Seoul (Naver Map link)

Dongjak Bridge : Dongjak-gu, Seoul (Naver Map link)

Seobinggo Elementary School Bus Stop (03268) : Seobinggo-dong, Yongsan-gu, Seoul (Naver Map link)

Seoul Station (Exit 15) : Seoul Station, Jung-gu, Seoul (Naver Map link)

Toegye-ro 20-gil : Jung-gu, Seoul (Naver Map link)

Philosophy Lounge : Hangangno 2-ga, Yongsan-gu, Seoul (Naver Map link)

Eulji-ro (1) : Jung-gu, Seoul (Naver Map link)

Eulji-ro (2) : Jung-gu, Seoul (Naver Map link)

SK Telecom Building Taxi Stand : Euljiro 2-ga, Jung-gu, Seoul (Naver Map link)

Bankers Association : Euljiro 2-ga, Jung-gu, Seoul (Naver Map link)

Myeongdong Goraebul : Myeong-dong, Jung-gu, Seoul (Naver Map link)

Euljiro 2-ga Intersection : Euljiro 2-ga, Jung-gu, Seoul (Naver Map link)

Signature Tower : Nonhyeon-dong, Gangnam-gu, Seoul (Naver Map link)

Gwangtonggyo : Insa-dong, Jongno-gu, Seoul (Naver Map link)

Seorin-dong, SK Seorin Building Bus Stop : Seorin-dong, Jongno-gu, Seoul (Naver Map link)

Hanwha Building Front : Euljiro 1-ga, Jung-gu, Seoul (Naver Map link)

Cheonggyecheon Hanbit Plaza : Jongno-gu, Seoul (Naver Map link)

DDD P : Mapo-gu, Seoul (Naver Map link)

Sindang Station Exit 1 : Sindang-dong, Jung-gu, Seoul (Naver Map link)

Toegye-ro 83-gil : Jung-gu, Seoul (Naver Map link)

Moa Kitchen Equipment : Sindang-dong, Jung-gu, Seoul (Naver Map link)

Ugly Bakery Bagel Sindaeng Main Branch : Sindang-dong, Jung-gu, Seoul (Naver Map link)

Kyobo Bookstore Gwanghwamun Branch : Jongno 1-ga, Jongno-gu, Seoul (Naver Map link)

Bukchon-ro 5-gil : Jongno-gu, Seoul (Naver Map link)

Tea Therapy : Donhwamun-ro, Jongno-gu, Seoul (Naver Map link)

Gamgodang-gil (1) : Jongno-gu, Seoul (Naver Map link)

Gamgodang-gil (2) : Jongno-gu, Seoul (Naver Map link)

Bukchon 5ga-gil : Jongno-gu, Seoul (Naver Map link)

Bukchon Tour : Jongno-gu, Seoul (Naver Map link)

Ikseon-dong Area (13 places) : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Jin Dakgangjeong : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Photoism Box Ikseon Branch : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

Cheongsudang Bakery : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

Next to Onjisim : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Artmonster Ikseon Branch : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of BBaht : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Assi Bangatgan : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Deul-an : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Ikseon Shooting Club : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Nakwon Station : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Cheese Industry (closed) : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Aildang : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

In front of Tongdwaejijip : Ikseon-dong, Jongno-gu, Seoul (Naver Map link)

Majyeon Bridge Underground Market (Daesinsa) : Majyeon Bridge, Gangdong-gu, Seoul (Naver Map link)

Sungshin Women’s University Unjeong Green Campus : Unjeong-dong, Paju-si, Gyeonggi-do (Naver Map link)

Titel CAFE+BAR : Mapo-gu, Seoul (Naver Map link)

Mizzle Cafe M : Mapo-gu, Seoul (Naver Map link)

Lee Seol Hamheung Naengmyeon : Yongsan-gu, Seoul (Naver Map link)

Seoul Medical Center : Jung-gu, Seoul (Naver Map link)

C156 : Yongsan-gu, Seoul (Naver Map link)

Seongsu Nagnag : Seongdong-gu, Seoul (Naver Map link)

Seoul Women’s University : Nowon-gu, Seoul (Naver Map link)

Banpo Hangang Park : Seocho-gu, Seoul (Naver Map link)

GS25 Han River Banpo 2 Branch : Seocho-gu, Seoul (Naver Map link)

Seoul Central District Court : Seocho-gu, Seoul (Naver Map link)

Brown Hands Gaehang-ro : Mapo-gu, Seoul (Naver Map link)

Saetbyeol Stationery : Mapo-gu, Seoul (Naver Map link)

Dice Works Yangju Main Branch : Yangju-si, Gyeonggi-do (Naver Map link)

Catholic University of Korea Uijeongbu St. Mary’s Hospital : Uijeongbu-si, Gyeonggi-do (Naver Map link)

Location Eum : Mapo-gu, Seoul (Naver Map link)

Oddie : Mapo-gu, Seoul (Naver Map link)

Baekgeumdang : Mapo-gu, Seoul (Naver Map link)

Ilsanseo-gu Youth Training Center : Ilsan, Goyang-si, Gyeonggi-do (Naver Map link)

Ilsan Hallyu World Uvora The Smart : Ilsan, Goyang-si, Gyeonggi-do (Naver Map link)

Dalmaji Farm : Gapyeong-gun, Gyeonggi-do (Naver Map link)

Uphill Road : Seocho-gu, Seoul (Naver Map link)

Ansan Bus Terminal : Ansan-si, Gyeonggi-do (Naver Map link)

Suwon Bus Terminal : Suwon-si, Gyeonggi-do (Naver Map link)

Suwon Station Underground Shopping Center : Suwon-si, Gyeonggi-do (Naver Map link)

Dangjin Uri Hospital : Dangjin-si, Chungcheongnam-do (Naver Map link)

Gwangcheon Bus Terminal : Boryeong-si, Chungcheongnam-do (Naver Map link)

Gayasan Parking Lot : Seongju-gun, Gyeongsangbuk-do (Naver Map link)

Gayasan : Seongju-gun, Gyeongsangbuk-do (Naver Map link)

Yesan County Group : Yesan-gun, Chungcheongnam-do (Naver Map link)

Daecheon Nursing Home : Boryeong-si, Chungcheongnam-do (Naver Map link)

Boryeong Sports Complex : Boryeong-si, Chungcheongnam-do (Naver Map link)

Nampo-myeon House : Boryeong-si, Chungcheongnam-do (Naver Map link)

Changdong 1-ri Senior Center : Chilgok-gun, Gyeongsangbuk-do (Naver Map link)

Changdong 1-gil : Chilgok-gun, Gyeongsangbuk-do (Naver Map link)

Changdong 3-gil : Chilgok-gun, Gyeongsangbuk-do (Naver Map link)

Natural Love Mart Buyeo Branch : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Sangwol-myeon Farm : Sangju-si, Gyeongsangbuk-do (Naver Map link)

Gobucheon-gil : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Baeksan High School : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Asan Elementary School : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Subuk Elementary School : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Culture Village Bus Stop : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Chuseong 1-ro : Buyeo-gun, Chungcheongnam-do (Naver Map link)

Gaeun High School : Mungyeong-si, Gyeongsangbuk-do (Naver Map link)

Our Unwritten Seoul Plot summary

Episode 1

Yoo Mijee, who had to quit track and field due to injury and left her dream track too soon, is living in her hometown, Duson-ri, taking care of her grandmother and working as the village’s “professional laborer.” Meanwhile, her older sister Yoo Mirae always ranked first in school and is now working at a public enterprise in Seoul. Her mother Kim Okhee (played by Jang Youngnam), as well as the neighbor Ajumma Yeom Bunhong (Kim Sunyoung), constantly compare her to her sister and urge her to get a job, but this only makes her resent Mirae even more.

Contrary to what the villagers think, Mirae is struggling alone in Seoul. After helping a senior who exposed corruption, she becomes the target of workplace bullying. When Lee Hosoo visits the countryside and tells Mijee that Mirae seems to be having a hard time, Mijee, secretly concerned, uses her mother’s request to deliver side dishes as an excuse to go to Seoul and meet her sister.

When they meet after a long time, Mirae is strangely different and declares that she won’t go to work even if she gets hurt, which shocks Mijee. Worried, Mijee rushes to her sister and tries to catch Mirae, who is hanging dangerously from a window, but they both end up falling.

Mijee bursts into tears, feeling sorry and frustrated for not realizing how desperate her sister was, and angry at herself. Mirae comforts her younger sister and apologizes, and, feeling lost herself, she suggests they temporarily switch lives like they used to, each doing what the other did best.

“I’ll live as you, you live as me.” — One of Mijee’s famous lines in Seoul.

Episode 2

Mijee tries to adapt to the company as Mirae but is flustered by unfamiliar tasks like field work. Even as she is persuaded by the building owner, Rosa (CEO Rosa), she doesn’t give up and keeps trying. Hosoo, as an internal investigator, keeps getting involved with Mirae (actually Mijee), and the two are increasingly drawn to each other. Mijee realizes during a call with Mirae that they thought they knew each other well, but in fact, they didn’t fully understand each other. Mijee fails repeatedly to persuade CEO Rosa but eventually gains hope when Rosa promises a meeting.

Episode 3

Hosoo realizes Mijee is not Mirae but awkwardly deals with the situation. Mijee and Hosoo recall their high school memories, and subtle feelings begin to grow. Mijee tries hard to persuade Rosa, but Rosa firmly refuses. Mijee is moved by accidentally hearing Rosa recite poetry from her past as a poet. When their eyes meet, Mijee quickly runs away, but later apologizes to Rosa and helps her clean, only for Rosa to tell her not to come again. Mijee feels uneasy in a love triangle with Hosoo and Jieun (a classmate), and after returning home, she calls Mirae.

Episode 4

Mijee attends a class reunion but feels uneasy because she is not Mirae. Mirae works at a strawberry farm in the countryside and faces conflict with Sejin and rumors. At the reunion, Mijee is mistaken for Mirae and struggles, then returns home and talks to Mirae. Mirae learns that their grandmother has been hospitalized and asks Mijee to transfer the hospital bill. Mijee worries about not being able to go to the hospital because of her Friday meeting with Rosa. Rosa injures her back and collapses the day before the meeting, and Mijee suffers a panic attack, receiving help from Hosoo. Hosoo confesses that his first love was Mijee, shocking her.

Episode 5

Hosoo ignores the doctor’s advice not to walk long due to his car accident aftereffects and joins the school hiking event. Mijee waits for Hosoo with mixed feelings, and Hosoo asks Mijee when his first love for her started. At work, Mijee is assigned to write a new business report and works all night. With Taei’s (a colleague) help, she completes the report but is criticized by the new team leader, damaging her self-esteem.

Mijee drinks and calls Hosoo, pouring out her true feelings from that day on the mountain. Drunk, she confesses her feelings to Hosoo without realizing it, and the next day, she doesn’t remember. Hosoo tells her everything is resolved. Mirae wants to quit the farm but starts to open up after Sejin’s persuasion.

Episode 6

Mijee submits her all-night report to the new team leader but is scolded for its low quality. She drinks with Taei for comfort and blames herself for not trying hard enough. Mijee asks Hosoo about the previous night, and they confirm each other’s feelings. Mirae, who wanted to quit the farm, regains her resolve after talking with Sejin.

Mijee notices a notice Rosa posted at home after her discharge, realizing Rosa has dyslexia. At a classmate’s wedding, Mijee and Hosoo, Mirae and Kyunggu (a classmate) all feel complicated emotions and confirm each other’s identities. At the wedding, Mijee reveals to Hosoo that she is Mijee, and Hosoo admits he already knew. They hesitate about their future relationship but confirm their feelings for each other more deeply.

Episode 7 ~ Ending

As Mijee lives Mirae’s life, she faces the workplace bullying and pain Mirae endured and carries out satisfying revenge. While Mijee lives as Mirae, Mirae starts a new life in Mijee’s place, and both experience growth and healing in each other’s shoes.

Hosoo also lives with past trauma, disabilities, and family tragedy, but through his encounter with Mijee (as Mirae), he experiences new change and growth.

Ultimately, Mijee and Mirae find their true selves by living each other’s lives, understand each other, and Hosoo also begins to care for and heal his inner self. In this process, various past wounds and mysteries—such as the death of the twins’ father and Hosoo’s family secret—are resolved, and all the characters come close to a happy ending as they welcome new beginnings.

Our Unwritten Seoul Ending

Hosoo also lives with past trauma, disabilities, and family tragedy, but through his encounter with Mijee (as Mirae), he experiences new change and growth.

Through the twins’ life-swapping adventure, they encounter Lee Ho-soo, a top law firm attorney, and Han Se-jin, who left the glamorous world of finance to become a farm owner. This romantic coming-of-age drama follows these characters, each with their own wounds and struggles, as they search for true happiness, real love, and the courage to live as their authentic selves.

Tastefully Yours Cast & Plot & Filming location Jeonju Hanok Village Kdrama