Original: 미지의 서울
Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.
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.
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.
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.
Deflated by unemployment, Ho-su searches for his next move. Meanwhile, Mi-ji sets up a crucial meeting between her company and the landlord.
Ho-su's sudden revelation leaves Mi-ji unsure about their dynamic. Meanwhile, Mi-rae struggles over swirling rumors about her and Han Se-jin.
Park Ji-yun increasingly pursues Ho-su, who's still processing Mi-ji's drunken confession. After abruptly quitting her job, Mi-rae becomes despondent.
Ho-su makes a surprise visit to Mi-rae, demanding answers. But when an incident draws Mi-ji back to their hometown, their web of lies deepens.
Now aware of each other's feelings, Mi-ji and Ho-su begin an awkward romance. Later, a shocking appearance at work leaves Mi-ji stunned.
Mi-ji and Mi-rae swap back places—forcing Mi-ji to temporarily move in with Ho-su. Mi-rae returns to her company, only to confront her past yet again.
With her motivation reignited, Mi-rae decides to fight back. While job hunting in Seoul, Mi-ji and Ho-su uncover the truth about Kim Ro-sa.
Ho-su's health takes a sudden turn, forcing him to reevaluate his relationship with Mi-ji. Meanwhile, Mi-rae takes a bold step toward the future.
Mi-ji and Mi-rae make it through a difficult chapter, finding new purpose on the other side—and confronting new challenges, both alone and together.
