- Koo Se-Ra (Nana) comes from a poor background, but she still manages to have bright personality. She supports herself by taking part-time work. Koo Se-Ra is famous in her local ward office for constantly filming civil complaints.
Seo Kong-Myung (Park Sung-Hoon) works as a fifth-grade public officer. He sticks to his principles no matter what and he does his job well. Other people do not like him due to his unfriendly personality. He gets involved with Koo Se-Ra.
Park Sung Hoon
Yoo Da In
Han Joon Woo