Iris (Isabelle Huppert), an enigmatic traveler, wanders around Seoul. There, she manages to persuade several people to learn French through a method that is as unconventional as it is charming, despite having no prior experience. Among walks in the park and glasses of makgeolli, she soon integrates as if she were part of the family. With her straw hat, floral dress, and green jacket, her carefree attitude creates an atmosphere of trust, joy, and learning, leading to comedic situations arising from her spontaneity and the occasional misunderstanding.