Blue Birthday

Original title: 블루버스데이

• First released date: 2021/07/23

• Genres: Drama, Mystery, Sci-Fi & Fantasy

• Tags: high school, time travel

• Ratings: 16 12 TV-14

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.

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