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Blue Birthday
2021 KO 1 Seasons
Overview
The series tells the story of Oh Ha-rin, who travels to the past through mysterious photos left by her first love, Ji Seo-jun. Since they were eight years old, they had been close friends, but he died by suicide on her birthday ten years ago.
First air date
23/07/2021
Votes
27
Popularity
2.7
Season 1
Original Soundtrack
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