Jae Seok, Yunho, DinDin, Hang Ho, and Defconn come to Sae Ho’s house to watch the recorded videos together. They decide to order food while watching the video, but it’s hard to decide what to order because of Sae Ho. When they watch the video together, they share their memories and feelings about the Relay Camera.

Jimi Yu schedules a meeting for all the members of Refund Sisters to sign a contract at his agency. As expected, Jimi finds it difficult to get over with even the smallest issue due to each member’s unwavering demands. Meanwhile, a group of applicants is interviewed one by one as a road manager for Refund Sisters.

Jimi finally signs two managers, after contemplating it for a while. Although they seem a bit inexperienced, Jimi believes the managers will satisfy the needs of the members. When the members meet the managers for the first time at a meeting, they are shocked and relieved at the same time.

After a quick photoshoot at a popular studio, Refund Sisters and Original Entertainment head out on their first schedule of events. While having fun making Chuseok greetings, Jimi subtly implies that the title song is ready. Even though other members seem to like the song, Cheon Ok pauses and sits in silence.

For the Chuseok holidays, Jimi Yu hosts a special gathering for the members and managers of Original Entertainment. The band members dressed in beautiful hanbok attire, which might make them look like possessed shamans. They play games with a big prize on the line for the winning team.

Even though Man Ok went through a hard time due to her vocal cord condition, she manages to participate in the official recording. With Eun Bi and Sil Bi swiftly wrapping up the recording, Cheon Ok also delivers the best possible performance thanks to Jimi Yu’s support. In the end, Rado and Jimi are mesmerized with the incredible result.

For their debut performance, the members of Refund Sisters gather to choose their outfits. Before making the final decision, Jimi Yu is literally forced to try on some of the outfits that were actually worn by idol singers. Later on, Original Entertainment participates in a choreography session with one of the famous choreographers.

With only several days left before the debut, the members of Refund Sisters focus on making their performance as perfect as possible. Meanwhile, one of the managers heads off to MBC in Sangam to attend the meeting with the director of the show. Now that the preparation work is complete, the members stand nervously on the stage for the music to start.

The members of Refund Sisters gather to shoot the music video. Man Ok’s enormous outfit brings back good old memories, while other members show off their unique charms as well. When the girls are busy doing their best, the director asks Jimi Yu to quickly film a short scene without the members’ knowing.

Due to the severity of the global crisis, the members of Refund Sisters never thought they could perform in front of an audience. However, thanks to Jimi’s initiative and drive, the members get a chance to perform at the Korea Armed Forces Nursing Academy. At the end, when the members watch KAFNA’s cheer squad perform, their eyes brim with tears.

With a few more meetings left before they part ways, the members of Refund Sisters put on a passionate performance in front of baseball fans. After their last official performance, the members receive a surprise gift from the staff, and they all get emotional.

Because of the help he received from many friends, Jae Seok was able to handle all the alter egos. To show their gratitude, the production crew prepares a kimchi-making challenge. The final products will be delivered to each of his friends. Although he’s not totally confident, Jae Seok does his best to show how grateful he feels to have them by his side.

On the verge of losing his underperforming team, Chief Inspector Yu strives to solve a mysterious murder case. To do so, he gets help from Korea’s very first profiler, Kwon Il Yong. Now that the team is capable of scientifically approaching the case, the chief and his fellow detectives carefully go over the crime scene in hopes of finding the culprit.