

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...
Sister's Diary was directed by Kim Tae-soo.
Sister's Diary holds an average rating of 6.2/10 on TMDB, and it lands best with fans of romance. Join the discussion below to add your take.
Sister's Diary runs for 1h 17min, and was released in 2020.
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