A Field Day (2018)

Seung Hee is a nine-year-old who hates losing. She is betrayed by love, and her family upsets her, too. Her father is fired from his job, her mother is in love with someone else, her grandfather is in a club, and her uncle is only full of enthusiasm. Although they are family, they have secrets they can't tell one another until one day they face an unimaginable truth. What will happen to Seung Hee's family?