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Poster of Secret Sister

Secret Sister (2018)

Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket.

  • 1 season
  • 19 episodes
  • KO
Directing
박소정
Writing
오정

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Original title
비밀언니
Status
Ended
First air date
May 4, 2018
Episode runtime
50 minutes
Original language
Korean
Production countries
South Korea
Networks
JTBC4