Secret Sister
Reality
May 4, 2018 – September 7, 2018
(began 8 years ago)
50m / episode
9.0/10
Ended
1 Season
19 Episodes
Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket.
Key Crew
Cast (11)
Directors
Writers
Original Name
비밀언니
Original Language
ko
Spoken Languages
Korean
Production Countries
KR
Production Companies
JTBC PLUS