Secret Sister poster

Series · 2018 · 50 min · 1 seasons

Secret Sister (2018)

Original title: 비밀언니

9/10 · 1 votes
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Reality

Secret Sister is a TV series (Reality) that first aired in 2018. Secret Sister has 1 seasons and 19 episodes in total. There is currently no known legal streaming option for Secret Sister in United States. Check back later or switch your region.

Last episode S1 · E19 — Episode 19 September 7, 2018

Where can I watch Secret Sister

📍 United States

No legal streaming option is known in United States yet. Try another region from the menu.

Streaming data provided by JustWatch.

Available in other countries

Streaming services that carry Secret Sister, and the countries where you can watch it:

TVING 1 countries

South Korea

Plot

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

Cast

Seasons

Frequently asked questions

Where can I watch Secret Sister?

There is currently no known legal streaming option for Secret Sister in United States. Check back later or switch your region.

Who stars in Secret Sister?

The main cast of Secret Sister includes Hyoyeon, Han Chae-young, YERI, Oh Ha-young and SUNMI.

Who created Secret Sister?

Secret Sister was created by 오정 and 박소정.

How many seasons and episodes does Secret Sister have?

Secret Sister has 1 seasons and 19 episodes in total.

When was Secret Sister released?

Secret Sister first aired on May 4, 2018.

Has Secret Sister ended?

Yes, Secret Sister has ended.

What should I watch if I liked Secret Sister?

If you enjoyed Secret Sister, try Cops, Raw, House Hunters International and Teen Mom 2.

Is Secret Sister on TVING?

Not in United States right now. Secret Sister is on TVING in: South Korea.

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Updated: October 27, 2026 ·