"Chief of Staff Season 2" has been around for eight months since it started in April and has already aired its final episode on December 10.

Jang Tae-jun (Lee Jung-Jae) started as an assistant to Song Hee-Seop (Kim Gap-soo). He has earned a badge of the congressional delegation as he struggled to rebuild fallen justice. The woman who never left Tae-jun side was Yoon Hye-won (Lee Elijah).

Lee Elijah said, "I feel like going to the studio was like going to the office." She acted as Yoon Hye-won for about eight months and naturally portrayed her character.