You, the social animal, traveled through time and returned to the campus, the music major in your dreams. But, this is the old industrial world with steam roaring, and you were involved in a thrilling serial death. You were a little panicked, but fortunately, a few seconds before the black screen of your phone, you read a mysterious text message... All kinds of exploration signs show that this wave of time travel is abnormal. Under the filthy appearance of the world, the chaotic secret history and heterogeneous truth are slowly revealed: "hidden knowledge, movement, phase, ritual instrument, witness" is the extraordinary road of "the knowledgeable"; "inspiration, composition, piano, conductor, symphony" is the sacred career of "artist".