This is a long-form transmigration web novel set amid the chaos of the Three Kingdoms, featuring a System that uses music to support military campaigns. It closely follows the historical timeline from the late Eastern Han dynasty through the reunification of China under the Jin dynasty, detailing battles large and small, rivalries between warlords, duels between generals, and every aspect of ordinary life. At its heart is a two-way, modern-music empowerment System tied to battle damage. The protagonist’s trump cards are popular music from every genre of 2025, epic Chinese-style songs, and rousing battlefield anthems, along with a signature, trump-card song for breaking enemy formations. Starting as a lowly foot soldier, he rises step by step without mindless power-ups or forced bids for supremacy. Music bolsters the army, shapes the balance of power, brings peace to the people, and helps unite the realm. The story unfolds across five steadily escalating volumes, with a well-balanced pace and a plot that follows the historical record. Its original music-based combat system runs throughout, with each stage of the plot, System level, attribute strength, musical permissions, and scale of battle carefully matched. There are no sudden breakdowns in power scaling or clashes in the worldbuilding.