The Return of Hwang Geum-Bok! (2015)

Geum Bok is ashamed of her mother who works as a street cleaner. Her mother, as a single mother, has worked hard to support Geum Bok. Geum Bok's feelings for for her mother begin to change. On their first trip, Geum Bok's mother disappears and Geum Bok is now all alone.