A young couple's love is tested when Sun-jin is diagnosed with a rare form of Alzheimer's disease.

The film is composed of six interconnected segments, each exploring different aspects of love across multiple generations. The story begins in the 1960s with a young boy in a rural village and spans across decades to feature characters in various stages of life. The first part, titled "Tangerine Ghost," follows a young boy in the 1960s, while later parts explore the lives of middle-aged and elderly characters dealing with loss, love, and memories. The film’s narrative revolves around a symbolic ancient ginkgo tree in the village, which connects the characters and their experiences throughout the six parts.