Quick answer
What is Sister's Diary?
Sister's Diary is a film first released in 2020. Catalogued under Romance.
- Type
- Film
- Year
- 2020
- Status
- Released
- Runtime
- 77 minutes
- Release date
- Feb 20, 2020
- Genres
- Romance
- Updated
Trailer
Overview
Sister's Diary is a film first released in 2020. Catalogued under Romance. Current status: Released.
Should you watch it?
“A hidden diary reveals a secret love between two siblings‑in‑spirit.”
Reasons to watch
- Heartfelt romance
- Tense emotional conflict
- Concise 77‑minute runtime
Keep in mind
- Mature themes may not suit younger viewers
Watch it if you enjoy tender Korean romance dramas about hidden feelings.
The film is rated 19+ and contains mature emotional content, making it appropriate for adult audiences.
Ask the Vault
Ask anything about Sister's Diary — answers are spoiler-safe.
Your verdict
Is Sister's Diary worth watching?
Cast
Verified insights
Frequently asked questions
What genre is Sister's Diary?
It is a romance film.
When was Sister's Diary released?
It was released in South Korea on February 20, 2020.
How long is the movie?
The runtime is 1 hour and 17 minutes.
What is the film’s age rating?
It carries a 19+ rating.
What is the basic premise of the story?
Two people who grew up like siblings discover mutual feelings after one finds the other's diary.