Episode 17 shifts focus to Dongbang Yoobin's story and her late girlfriend, exploring Yoobin's search to uncover who was responsible for her girlfriend's murder. The episode delves into their relationship, showing how they met and the tragic events that led to her death.
One of the suspects is revealed to be in Seoul, and unsettlingly, clips show that this person continues to follow young women. With another recent murder of a young woman, the possibilities and tension begin to build.
The episode opens on a light note as the team comes across a photo of Yoobin and her girlfriend. They speculate humorously about how they might have met, using snippets of Yoobin’s conversations as clues. Their imaginative guesses add some warmth to the story.
Soon after, the team gets down to investigating the girl's death. Although they haven’t confirmed anything, they’re actively searching for clues that might reveal why she was killed and who was responsible.
Overall, this episode has a mix of nostalgic and bittersweet moments for Yoobin, with both lighter and darker undertones that keep the story engaging.