블루버스데이 - Season 1
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.
- Zhanri: Sci-Fi & Fantasy, Drama, Mystery
- Studio: NAVER TV, YouTube, V LIVE
- Fjalen: time travel, high school
- Cast: Yeri, Yang Hong-seok, Lee Sang-jun, Kim Gyeol-yu, Ju Hyeon