Monburan no onna: Fushidara ni nurete(2020)

Reiko, a mother of one, spends her days commuting between her home and the convenience store where she works part-time. However, there is one thing that bothers her: a worker who always buys a Mont Blanc cake with his lunch. Her coworkers have come to call him "Mont Blanc-san," and one day, she sees him being assaulted by a group of people on the riverbank and rescues him.