"Level 7 Civil Servant" Joo Won and Choi Kang Hee keep their secret about Ahn Nae Sang to protect him and his family members.

In the 19th episode of the MBC drama "Level 7 Civil Servant" featured Kim Seo Won (Choi Kang Hee) and Han Kil Ro (Joo Won) struggling to act natural in order to carry out their plan to solve the problem concerning the inside spy.

After interfering with the sniper that has been set up by Oh Kwang Jae (Choi Jong Hwan), Han Kil Ro and Kim Seo Won are called into his office for an explanation of their actions. Even when he asks them who ordered them to interrupt, they remain quiet, keeping their secret.

Even when Oh Kwang Jae threatens their job, Han Kil Ro and Kim Seo Won do not answer. Right then, Young Soon (Jang Young Nam) appear in the office and tells Oh Kwang Jae that she is the one that ordered them to interrupt.

Oh Kwang Jae becomes even more furious and tells them they need to wait until they get a final approval from the appropriate source.

Young Soon then reveals that Kim Won Suk's (Ahn Nae Sang) hospital room has been under attack. Oh Kwang Jae asks for Kim Won Suk's hospital room but Young Soon does not say.

Young Soon was also beginning to suspect Oh Kwang Jae.