The premise sounds like a setup you’ve seen before β two identical twins quietly trade places β but the engine of Our Unwritten Seoul (λ―Έμ§μ μμΈ) is something smaller and sharper than a swap-comedy gimmick. One sister finds out the other is being ground down by workplace bullying, and the trade isn’t for fun or romance. It’s a rescue. Park Bo-young plays both halves of that bargain, and the show lives or dies on whether you believe one actress can be two genuinely different people sharing a face. She can, and that’s the reason to watch.
The premise
Yoo Mi-ji and Yoo Mi-rae are identical twins wired in opposite directions. Mi-ji is a former sprinter whose track career ended with an injury; she’s drifted into a loose, unbothered life back in her rural hometown, looking after her grandmother. Mi-rae is the tightly wound one β a perfectionist at a public corporation in Seoul, the kind of person who keeps everything in order until the order starts cracking under pressure she won’t admit to.
When Mi-ji learns her sister is being mistreated at work, the two swap for a few months. Mi-ji walks into the Seoul office as Mi-rae; Mi-rae retreats to the countryside. What the show is really after isn’t the disguise β it’s the quieter discovery that follows, as each twin tries on the other’s life and finds a gentler way to treat herself. It sits firmly in the coming-of-age and healing-drama lane rather than chasing twists.
Where to watch
Our Unwritten Seoul aired on tvN in South Korea over weekends, running 12 episodes from May 24 to June 29, 2025, with roughly 70-minute episodes. It was a solid ratings performer, with the finale reported peaking around 8.4% nationally. For international viewers, it streams on Netflix; in Korea it’s also on TVING.
- Internationally: Netflix (availability varies by region)
- South Korea: tvN (original broadcast) and TVING
One note for anyone searching: the literal Korean title λ―Έμ§μ μμΈ reads closer to “Unknown Seoul,” and some aggregators slug it that way. “Our Unwritten Seoul” is the official localized international title.
The cast
Park Bo-young (λ°λ³΄μ) carries the dual role of Yoo Mi-ji and Yoo Mi-rae, and the casting is the whole pitch. The fun is watching her play one twin pretending to be the other β Mi-ji doing a stiff, careful impression of Mi-rae, and the small tells that almost give her away.
Park Jin-young (λ°μ§μ, better known as GOT7’s Jinyoung) plays Lee Ho-soo, the romantic counterweight who gets drawn into the twins’ tangled situation. Ryu Kyung-soo (λ₯κ²½μ) rounds out the leads as Han Se-jin. Their chemistry leans warm and unhurried, which suits a series more interested in healing than heat.
Filming locations
The drama splits its world between a rural hometown and the city it’s named for, and Seoul does a lot of the visual heavy lifting. A fair word of caution before you build a tour around this: the specific Seoul spots below come from third-party fan and travel guides rather than an official production list, so treat them as reported rather than studio-confirmed.
The most-cited city landmarks include the Cheonggyecheon stream cutting through downtown, the Banpo Bridge and its Moonlight Rainbow Fountain on the Han River, Gwanghwamun Square near Gyeongbokgung, the Ikseon-dong hanok alley, and the Seoul Forest and Seongsu area. The hometown scenes β the fictional “Duson-ri” β were shot well outside the capital, with countryside filming variously reported across places like Mungyeong, Damyang, Dangjin and Suncheon. Those rural sites are harder to pin to exact villages, so I’d take the specific country addresses with a grain of salt.
Worth your time?
This one is for viewers who want their dramas slow, kind, and emotionally precise rather than plot-driven. If you came out of a healing slice-of-life like this looking for the next quiet show that trusts a great lead performance, Our Unwritten Seoul earns its 12 episodes. Park Bo-young doing double duty is the draw, and the swap is less a trick than a way for two people to learn how to be easier on themselves. Come for the twin premise; stay for how unshowily it lands.
Leave a Reply