Ra Mi-ran is a South Korean actress and television personality. She is best known for starring in the TV dramas Black Dog (2019), The Miracle We Met (2018), Avengers Social Club (2017), Come Back Mister (2016), Reply 1988 (2015 - 2016) and Steal Heart (2014).
Go Ha-neul becomes a teacher in a private school due to to her gratitude to a teacher who saved her life when she is young. Park Seong is an experienced teacher in the private school who acts as the mentor to Ha-neul. Do Yeon-Woo is a Korean language teacher who is popular with the students.