A top student from a modern conservatory time-travels to the great Daqi Dynasty, reduced to the lowly palace musician Su Chen, who is implicated by criminal officials and faces mortal danger at any moment. At a life-or-death crisis during the grand imperial banquet, he belts out a song from another world, stunning the entire hall with a single tune. Conservative grand tutors and palace music officials frame him one after another, the empress dowager puts pressure on him step by step, and all the court officials view him as a seducing wicked musician. Fortunately, he gains the appreciation and protection of the cold, solitary emperor Xiao Jingyuan. Relying on modern musical pieces to break through deadlocks, Su Chen engages in a tongue-in-cheek battle with all the Confucian scholars in the court, achieves a counter-wind apotheosis with magnificent musical movements at the millennial palace banquet, and takes charge of the newly established Ministry of New Music. He breaks through the shackles of rituals and laws, reforms ritual music, gains monarch-and-subject soulmates, and writes a legendary chapter in the Daqi Dynasty with music!