Secret Sister
Original title: 비밀언니
50 minutes • 2018 - 2018 • 1 season • 19 episodes • 9.0 Score
Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket.
Celebrities become an Unnie (older sister) for a day to a younger celebrity spending 24 hours together, sharing one bed and one blanket.