Teach You a Lesson
2026 · Action & adventure · Drama
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TV series / 2025
Our Unwritten Seoul
Episode directors
Park Shin-woo
Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.
The story
Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.
Cast
Park Bo-youngYoo Mi-ji / Yoo Mi-rae
JinyoungLee Ho-su
Ryu Kyung-sooHan Se-jin
Jang Young-namKim Ok-hee
Kim Sun-youngYeom Bun-hong
Won Mi-kyungKim Ro-sa
Cha Mi-kyungKang Wol-oon
Im Cheol-sooLee Choong-gu
Lee Jae-inTeen Yoo Mi-ji / Yoo Mi-rae
Park Yoon-hoTeen Lee Ho-su
Jang Se-hyukChoi Seung-hyeon
Moon Dong-hyeokSong Kyeong-gu
See more cast
Yoo Yu-jinPark Ji-yun
Hong Seong-wonKim Tae-i
Jung Seung-kilChoi Tae-gwan
Lee Si-hoonShin Kyeong-min
Yang Dae-hyeokHwang Yun-ho
Jung Eun-pyoCho Myeong-gap
Shim So-youngLee Hyo-kyung
Go Ae-riAn Mi-jeong
Song Seung-hwanYoung Song Gyeong-gu
Ryu Sung-rokYeong-hun
Park Ye-yeongKim Su Yeon [Former senior manager]
Kim Ju-hun[Ho Su's father]
Jung Ji-woo[Nursing home clerk]
Kim Eun-kyungDoctor
Kim Gye-rimEun Su [High school alumna]
Park Yu-mil[Doctor]
Kim Geon-ho[Teacher]
Bae Seong-il[Teacher]
Lee Jang-ho[PE teacher]
Kim Min-seok[Track coach]
Jeon Yeong[Cafeteria staff]
Kang Jeong-im[Cafeteria staff]
Ryu Tae-hoChairman Choi
Moon Kyung-minRosa Restaurant Customer
Lee Jung-yeolRosa Restaurant Customer
Lee Seung-joonYun Ji Sang
Min Sang-cheol[Doctor]
Park Ok-chool[Caregiver]
Lee Hyeon-seo[Caregiver]
Jin Tae-yeon[Singsong alumna]
Kim Moon-ho[Appliance salesman]
Kang Ye-chanLee Ho Su [Child]
Chae Song-hwaSu Yeong
Jung Chan-hoonDirector Yun
Park Ga-young[Bus ticket agent]
Yang Jae-seong[Se Jin's granddad]
Cho Yeon-jin[Bun Hong’s sister]
Lee Na-raBun Hong Sister
Kim Da-huinKi Cheol [Lawyer]
Oh Ki-hwanYun Gyeong Ho [NFS Seoul institute]
Jang In-ho[HR employee]
Son Sang-gyu[A&A employee]
Yoon Young-min[Hearing panelist]
Park Ji-hoonCha Jong Su
Jeon Jun-wooKo Yeong Hak [Prosecutor]
Oh Min-jeong[Passerby]
Park Chan-guk[Customer]
Kim Seong-yong[Photographer]
Kim Jung-han[Hoseondang worker]
Jung Ma-rin[Restaurant owner]
Lee Dong-kyu[News program host]
Shin Jeong-wonHwang Ji-Su
Seo E-hyunEmployee
Jeong Dae-yongRosa Restaurant Customer
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