Episode 5 of The Frog, titled "I'm Just 'It' in This Game of Tag," delves deeper into the complex web of mysteries and relationships that have been unraveling throughout the series. The episode begins with Bo-min investigating the suicide of Mr. Kim, the ghostwriter for Hyang-cheol, the convicted murderer. Despite the official conclusion of suicide, Bo-min's instincts lead her to believe that there is more to the story.

In the past, Bo-min's exceptional detective skills are highlighted as she recounts a previous case she solved. Her ability to identify subtle clues and inconsistencies proves to be invaluable in her pursuit of the truth. In the present day, Sung-a's confrontation with Yeong-ha takes a dangerous turn, leading to a power struggle between the two.
Yeong-ha's determination to protect the motel from Sung-a's influence intensifies. He employs various tactics to drive her away, including making false bookings and spreading rumors about her. However, Sung-a proves to be equally resourceful, using her own strategies to counter his efforts.
As the episode progresses, the tension between Yeong-ha and Sung-a reaches a breaking point. Their conflict escalates into a physical confrontation, revealing their true intentions and the lengths they are willing to go to protect their interests.
Meanwhile, Bo-min's investigation into Mr. Kim's death leads her to uncover a hidden connection to the motel. She suspects that someone is trying to conceal the truth about the incident, and her determination to uncover the truth grows stronger.
The episode also introduces a new character, Officer Kim Seon-tae, who harbors feelings for Sung-a. His infatuation with her leads him to intervene in her conflict with Yeong-ha, adding another layer of complexity to the story.
As the episode draws to a close, the stakes are raised even higher. Yeong-ha's actions have consequences, leading to his arrest. Bo-min's investigation continues, and she becomes increasingly convinced that there is more to the story than meets the eye.
Overall, "I'm Just 'It' in This Game of Tag" is a captivating episode that further unravels the mysteries surrounding the motel and its inhabitants. The complex interplay between characters, the escalating tensions, and the ongoing investigation keep viewers on the edge of their seats. The episode ends with a cliffhanger, leaving the audience eager to see how the story will unfold in the next episode.