Black Dog

It tells the story of a young woman who gets a short-term teaching position and does her best to fight for students’ dreams in school. The drama will take a deep look into the lives of teachers and provide commentary on society through the microcosm of a school setting.
Go Ha Neul is newly appointed to a short-term teaching position at a private school. She dreamed of becoming a teacher because of her gratitude towards one of her own teachers who saved her life, and she will grow with the students as they face the various issues that exist in a cut-throat private school setting.
Park Sung Soon, is the head of the career counseling department at the school and a known workaholic. She is well-known as someone who will do whatever it takes for her students and is even willing to visit schools on her students' behalf to fight for them.
Bae Myung Soo and Do Yeon Woo, work with Park Sung Soon. Go Ha Neul joins them.
(Source: Soompi)