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Overview: Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket. |
![]() Secret SisterAir Date: 5/4/2018Imdb:Popularity: 8.719Vote: 0/10 (0)Last Aired: 9/7/2018 12:00:00AMNext Aired:Status: EndedSeasons: 1 - InfoNetworks: JTBC4 |
Overview: Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket. |