- Released on July 23, 2021
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.
Full Cast of Blue Birthday
Yeri
as Oh Ha-rin
Kim Ye-rim (born March 5, 1999), also known as Yeri, is a South-Korean singer and dancer. She is the maknae, vocalist...