

Blue Birthday
"Her first love passed away on her birthday"
5.7(27)
202124m/ep.
1 season
Sci-Fi & FantasyDramaMystery
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.
Main cast

YERI
Oh Ha-rin

Yang Hong-seok
Ji Seo-jun

Lee Sang-jun
Cha Eun-seong

Kim Gyeol-yu
Do Su-jin

Ju Hyeon
Kim Ui-yeong











