讲述的是性格耿直爱打抱不平的热血信访女士通过向极具原则性的9级公务员学习英语的过程中，逐渐学会讲英语的同时两个人的心扉也逐渐打开成为忘年之交的故事。
Na Moon-hee
Na Ok-boon
Lee Je-hoon
Park Min-jae
Sung Yoo-bin
Young-jae
Yeom Hye-ran
Jinjoo-daek
Lee Sang-hee
Hye-jung
Jeong Yeon-joo
A-young
Lee Ji-hoon
Jong-hyun
Park Cheol-min
Team Leader Yang
Son Sook
Jung-sim
Kim So-jin
Geum-joo
Choi Soo-in
Young Na Ok-boon
Lee Jae-in
Young Jung-sim
Lee Dae-yeon
Ward Chief
Kim Il-woong
Bald Guy
