During a proxy trip to Pohang, Yeo-reum overhears the story of actor Lee Jung-woo, who once filmed there and befriended the people there. Yeo-reum begins to suspect that he, who disappeared without a trace five years ago, may be Genie's true owner. Meanwhile, after hearing from a veterinarian that Genie's health is deteriorating, Yeo-reum breaks her security agreement and contacts her client, only to receive a heartless message. She begins to realize that this trip is more than just a proxy trip.

This trip takes her to Hakodate, Hokkaido, Japan. Yeo-reum embarks on her first-ever overseas trip. The excitement is fleeting, and as she busily follows the locations her clients have left behind, she repeatedly encounters a woman named Haruko at the same location. Haruko, who visits this place every year only on her birthday, seems to have something off about her. Through these seemingly coincidental encounters, Yeo-reum witnesses a shocking sight in Haruko...

The person who requested the Hakodate trip was Yeong-hoon, a cardiac surgeon and junior of Sang-sik. Unable to attend due to an important surgery, he asked Yeo-reum to travel on his behalf, along with a detailed itinerary. Meanwhile, as Haruko's appearances reappear throughout the videos Yeo-reum sent, Yeon-seok begins to suspect that their travel schedules are the same, and Yeo-reum grows increasingly confused. What hidden connection exists between Yeong-hoon and Haruko?