Beullaekdok plot
Ko Ha-Neul dreamed of becoming a teacher, thanks to a teacher who helped her when she was young. She is now going to work as a temporary teacher at a private secondary school. While working there, she interacts with many people, including her colleagues Park Sung-Soon and Do Yeon-Woo. Both are dedicated to their teaching duties. Meanwhile, Ko Ha-Neul has to deal with several problems at school. As she works through those issues, Ko Ha-Neul grows as a person and as a teacher.