Gently, the green river cradles the salmon on their journey upstream, to the place where they were born. They have swum far, defied the ocean's tides, and bravely leaped up the waterfall - they have followed their destiny and done what salmon do. But one among them, Silver Salmon, is not content with that - surely the purpose of his existence must be more than just blindly following the school? Time and again, he pokes his head out of the water and gazes longingly at the world beyond, even up to the stars. He wants to be free. Yet his beloved friend Clear Eye warns him against chasing rainbows. Why am I in this world? What does it take to be happy? The story of the fish who dared to dream has enchanted millions of readers. Ahn Do-Hyun skillfully poses the big questions of life.