First air date: Jul 23, 2021 Episode duration: 00h 24m Rating: (5.4) based on 23 votes Status: Ended Seasons: 1 Episodes: 16 Starring: Yeri, Yang Hong-seok, Lee Sang-jun, Kim Gyeol-yu, Ju Hyeon Genre: Sci-Fi & Fantasy, Drama, Mystery
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.
