Plot
In the center of Yeouido is the KBS building. On its sixth floor are partitioned offices where employees work in the network's variety department, keeping hectic schedules of filming, editing and all-night meetings.
Main characters
Kim Soo-hyun as Baek Seung-chan[8][9]
Park Sang-hun as young Seung-chan
An aspiring prosecutor who changed careers because of a woman. He is now a rookie PD (producer-director) with the variety division.
Cha Tae-hyun as Ra Joon-mo[10][11][12]
Gil Jeong-woo as young Joon-mo
Chae Sang-woo as teenage Joon-mo
A seasoned PD who has worked in the industry for ten years. Despite working on a lot of variety programs, he has no single masterpiece to call his own.
Gong Hyo-jin as Tak Ye-jin
Lee Ji-won as young Ye-jin
Ha Seung-ri as teenage Ye-jin
Another PD with ten years of experience, who works on a music program. She is smart, haughty and never holds back in letting people know what she thinks.
IU as Cindy[17][18][19]
Park Seon as young Cindy
A famous singer and celebrity who became a trainee when she was 13 years old. She is called the "ice princess" for her poker face and complete control over her emotions.
