"Level 7 Civil Servant" Kim Min Seo continues to love the man who betrays her.

March 21, the 18th episode of the MBC drama "Level 7 Civil Servant" featured Shin Sun Mi (Kim Min Seo) begins to get suspicious when Kong Do Ha (Hwang Chan Sung) helps Kim Won Suk (Ahn Nae Sang).

Do Ha notices that Sun Mi is acting very cold towards him and decides to confront her. During their conversation, Sun Mi reveals that she knows that he is an inside spy working for Oh Kwang Jae.

At this, Do Ha replies, "Since you found out that I'm a spy, you used me by pretending to like me. You're acting like an amateur, revealing your emotions to everybody."

Sun Mi says, "Do you know why I'm acting like an amateur?" and "Listen carefully. You're not allowed to crush on Kim Seo Won (Choi Kang Hee) or anybody else from now on. It's because I like you."

Sun Mi started to like Do Ha from the first moment they met. Even when she found out that Do Ha was in love with Seo Won, Sun Mi continued to love him because she was unable to stop herself.

Sun Mi falls into despair when Do Ha betrays his team and sends Oh Kwang Jae their top secret information. Regardless, Sun Mi is unable to control her feelings for him, frustrating the viewers.