
Choi majored in Scenario at the Korea National University of Arts. In 2012, she was invited to the competition section at the Great Short Film Festival for her short film Gosum the hedgehog. She directed the short film The sound of mind in 2014. More Than Family is the director′s feature debut film.

To-il gets pregnant while dating her 19 years old tutoring student. Her mother and step-father are not pleased with the situation, so she decides to track down her biological father whom she has not seen for 15 years.