Nobody's Daughter Hae Won (2013)

University student Hae-Won wants to break up with Teacher Sung-Joon. They have had a secret relationship. Hae-Won meets her mother, who is going to emigrate to Canada tomorrow. After meeting her mother, Hae-Won feels depressed and decides to meet Sung-Joon for the first time in a long while. On that day, Hae-Won and Sung-Joon happen to meet students at a restaurant who study the same major, and their relationship becomes known to others. Hae-Won becomes more depressed. Sung-Joon then suggests they run away somewhere else.