2021
S01E12 finale
An enthralling journey begins as a man and a woman, trapped in May 1987, embark on their adventure.
A reporter and a writer accidentally travel back to the past and are trapped in 1987. They both search for the truth of past serial murders and in the process of it, they both realize that their goals are somewhat connected to each other.
Yoon-young was able to enter school thanks to Hae-jun's help. As soon as she began her classes, she realized that one of her classmates was the future Ko Mi-sook. However, she was unaware of the danger that Ko Mi-sook posed, as she was extremely clever. Hae-jun ensured that Yoon-young remained at school until he could pick her up, but when he returned, Yoon-young was nowhere to be found.