Sister's Diary [누나의 일기]
- Release Year
- 2020
- Runtime
- 1h 17m
- Genres
- Romance
- Directed By
- Not Available

Ga-eun and Su-ho grew up like brothers and sisters. However, Su-ho never showed that he likes Ga-eun ever since they were young. One day, Suho accidentally found Ga-eun's diary and found out that she also likes him. Su-ho reveals his feelings to Ga-eun. Ga-eun is not his real sibling, but to protect their parents, she rejects him...

