7th Grade Civil Servant (Hangul: 7급 공무원; hanja: 七級公務員; RR: 7geup Gongmuwon) is a 2013 South Korean television series starring Choi Kang-hee and Joo Won as rookie spies who trained together, and later become NIS agents who must hide their real identities from each other even as they fall in love.It aired on MBC from January 23 to March 28, 2013 on Wednesdays and Thursdays at 21:55 for 20 episodes.The spy romantic comedy series is a remake of the 2009 film My Girlfriend Is an Agent.