UMI's song "Nostalgia" talks about the experience of feeling forgotten and unimportant. The narrator reflects on a past relationship and the memories associated with it. The lyrics suggest that the narrator has lost the ability to remember the person's face, but still vividly recalls the taste of them and the place where they last said goodbye. The word "nostalgia" itself refers to a longing or sentimentality for the past. In this song, UMI expresses that nostalgia is all she feels and a significant part of her identity. She feels as though she is defined by the memories and experiences that have now become broken and cannot be recreated. The repeated line "nostalgia, it's all I am, it's all I'll ever be" emphasizes the narrator's sense of being stuck in the past and unable to move forward. The song conveys a sense of loss and an inability to let go of what once was, mentioning that nothing remains of the relationship that once existed between the narrator and the subject of the song. Overall, "Nostalgia" explores the bittersweet emotions associated with remembering and longing for something that has been lost, highlighting the impact of past experiences on one's present self.
