1 Season
16 Episode
Blue Birthday - Season 1 Episode 4 Rule of Equivalent Exchange (2021)
- Country : South Korea
- Genre : Sci-Fi & Fantasy, Drama, Mystery
- Studio : NAVER TV, YouTube, V LIVE
- Director :
- Cast : Yeri, Yang Hong-seok, Lee Sang-jun, Kim Gyeol-yu, Ju Hyeon