Starring
Kim Ye-rimYang Hong-SeokLee Jung-jaeYoo Su-binMoon Sang-hoonMin Chae-yeon
Ratings per Episode
Votes per Episode
Blue Birthday Episode Ratings Heatmap
| Avg | E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | E10 | E11 | E12 | E13 | E14 | E15 | E16 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 9.0 | 9.2 | 9.0 | 8.7 | 9.1 | 9.1 | 9.1 | 8.9 | 8.8 | 8.9 | 9.0 | 8.9 | 9.1 | 8.9 | 8.9 | 9.1 | 9.2 |
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About
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.
"Her first love passed away on her birthday"
All Seasons
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Season 12021
9.0282163h 13m
| Ep | Title | Rating | Yours | Votes | Runtime | |
|---|---|---|---|---|---|---|
| ▶ | 1 | My Bad Birthday | 9.2 | 25 | — | |
| ▶ | 2 | You're in My Dream | 9.0 | 22 | 21 min | |
| ▶ | 3 | Lively Ordinary Days | 8.7 | 19 | 18 min | |
| ▶ | 4 | Law of Equivalent Exchange | 9.1 | 18 | 26 min | |
| ▶ | 5 | Another Chance | 9.1 | 18 | 22 min | |
| ▶ | 6 | What Happened That Day | 9.1 | 16 | 19 min | |
| ▶ | 7 | It's You, Isn't It? | 8.9 | 16 | 19 min | |
| ▶ | 8 | Crisis | 8.8 | 16 | 22 min | |
| ▶ | 9 | Witness | 8.9 | 16 | 24 min | |
| ▶ | 10 | If We Have Such A Big Misfortune | 9.0 | 16 | 22 min | |
| ▶ | 11 | Episode #1.11 | 8.9 | 16 | — | |
| ▶ | 12 | Episode #1.12 | 9.1 | 16 | — | |
| ▶ | 13 | Episode #1.13 | 8.9 | 17 | — | |
| ▶ | 14 | Episode #1.14 | 8.9 | 18 | — | |
| ▶ | 15 | Episode #1.15 | 9.1 | 16 | — | |
| ▶ | 16 | Episode #1.16 | 9.2 | 17 | — |
Full Cast & Crew
Cast
Kim Ye-rim Oh Ha-rin
Yang Hong-Seok Ji Seo Jun
Lee Jung-jae Detective
Yoo Su-bin Senior at Seoyeon High School
Moon Sang-hoon
Min Chae-yeon Ha-rin's co-worker
Song Min-hyung Photo Shop owner
Lee Sang-jun Cha Eun-seong
Moon Joo-won Ji Seo-jun (Young)
Jeong Ye Dam Ji Hye Min [Young]