Sputnik Sweetheart is a haunting and introspective novel about unrequited love, loneliness, and the invisible distances between people. The story follows K, a young writer deeply in love with Sumire, an eccentric aspiring author who, in turn, falls for an older woman named Miu. As their relationships intertwine, a mysterious disappearance pulls the narrative into surreal and emotional territory. Murakami blends reality with dreamlike elements to explore identity, desire, and emotional isolation. Quiet yet powerful, the novel reflects on the pain of loving someone who cannot love you back. Poetic, strange, and deeply moving, Sputnik Sweetheart is perfect for readers who enjoy thought-provoking literary fiction with emotional depth.