Midterms are over, but some of the seniors have a complaint about one of the questions on the Korean test. All of Daechi High’s Korean teachers get together to discuss what to do about the question. They come to a conclusion after a heated debate, but Ha Neul can’t seem to let go of her unease. Ha Neul, Yeon Woo, and Hae Won plan a secret meeting.
Kim Jung-young
Moon So-nyeo (Go Ha-neul's mother)
Jeong Taek-hyeon
Hwang Bo-tong
Ha Jun
Do Yeon-woo
Ra Mi-ran
Park Seong-soon
Seo Hyun-jin
Go Ha-neul
Jung Hae-kyun
Moon Soo-ho
Jo Yeon-hee
Kim Yi-boon
Park Ji-hwan
Song Yeong-tae
Lee Chang-hoon
Bae Myeong-soo
Park Yu-rim
Ryu Jin-hee
Kwon So-hyun
Song Ji-sun
Ye Su-jeong
Yoon Yeo-hwa
Kim Hong-pa
Byeon Sung-joo
Lee Yoon-hee
Lee Seung-taek
Maeng Sang-hun
Go Sung-chul (Go Ha-neul's father)
Park Ji-hoon
Ku Jae-hyun
Lee Eun-saem
Jin Yoo-ra
Woo Mi-hwa
Han Jae-hee
Heo Tae-hee
Ha Su-hyeon
Yoo Min-kyu
Ji Hae-won
