Series synopsis
Our Unwritten Seoul, also known as 미지의 서울 is a South Korean drama television series that premiered on tvN on May 24, 2025. It ended on June 29, 2025. It stars Park Bo-young, Jinyoung, Ryu Kyung-soo and Jang Young-nam.
Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.
Premise
Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.
Cast and characters
Leading cast
- Park Bo-young as Yoo Mi-ji / Yoo Mi-rae
- Jinyoung as Lee Ho-su
- Ryu Kyung-soo as Han Se-jin
- Jang Young-nam as Kim Ok-hee
- Kim Sun-young as Yeom Bun-hong
- Won Mi-kyung as Kim Ro-sa
- Cha Mi-kyeong as Kang Wol-oon
- Lim Cheol-soo as Lee Choong-gu
Supporting cast
- Lee Jae-in as Teen Yoo Mi-ji / Yoo Mi-rae
- Park Yoon-ho as Teen Lee Ho-su
- Jang Se-hyuk as Choi Seung-hyeon
- Moon Dong-hyeok as Song Kyeong-gu
- Yoo Yu-jin as Park Ji-yun
- Hong Seong-won as Kim Tae-i
- Jung Seung-kil as Choi Tae-gwan
- Lee Si-hoon as Shin Kyeong-min
- Yang Dae-hyeok as Hwang Yun-ho
- Jung Eun-pyo as Cho Myeong-gap
- Shim So-young as Lee Hyo-kyung
- Go Ae-ri as An Mi-jeong
Guest cast
- Park Ye-yeong as Kim Su Yeon [Former senior manager]
- Park Yu-mil as [Doctor]
- Kim Geon-ho as [Teacher]
- Bae Seong-il as [Teacher]
- Lee Jang-ho as [PE teacher]
- Kim Min-seok as [Track coach]
- Jeon Yeong as [Cafeteria staff]
- Kang Jeong-im as [Cafeteria staff]
- Ryu Tae-ho as Chairman Choi
- Moon Kyung-min as Rosa Restaurant Customer
- Lee Jung-yeol as Rosa Restaurant Customer
- Lee Seung-joon as Yun Ji Sang
Episodes
This series spans 1 season with 12 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 12 | May 24, 2025 | June 29, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Mi-ji, Yet Unknown Lee Ho-su returns home and runs into Yu Mi-ji, who's flailing through life. He convinces her to visit her twin, Yu Mi-rae, who is quietly suffering. |
May 24, 2025 |
| 2 |
Review and Reassess Mi-ji finds Mi-rae's corporate job dull — until she accepts a difficult project. Meanwhile, Mi-rae coasts through farm life, butting heads with her boss. |
May 25, 2025 |
| 3 |
Knock, Knock! Please Open Your Heart Mi-ji stops at nothing to persuade the restaurant owner to sell her shop. Meanwhile, Ho-su deals with being iced out after angering his boss. |
May 31, 2025 |
Production
Release
| Original network/platform | tvN |
|---|---|
| First aired | May 24, 2025 |
| Last aired | June 29, 2025 |
| Runtime | 79 minutes |
| Status | ended |
| Schedule | Saturday, Sunday at 21:20:00 |