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Season 1 Episode
- Season 1 My Bad Birthday
- Season 1 You're in My Dream
- Season 1 Lively Ordinary Days
- Season 1 Rule of Equivalent Exchange
- Season 1 Another Chance
- Season 1 What Happened That Day
- Season 1 It's You, Isn't It?
- Season 1 Crisis
- Season 1 Witness
- Season 1 If We Have Such A Big Misfortune
- Season 1 You and I
- Season 1 Suspicion
- Season 1 Abandoned Girl
- Season 1 Never Regret
- Season 1 Disappear
- Season 1 My Blue Birthday
Blue Birthday
5.40 24 minutes 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.
