The mysterious organization "Noise Order" in the near-future city "Nova City" attempts to tear up the forbidden music scores of the ancient music civilization "Melody Kingdom" that sealed 88 "discordant monsters" and devour the world with negative frequencies. Five young people with "resonance power" awakened and became the Starlight Team, driving animal mechas to fight against monsters. As the battle deepens, they discover that the truth behind the cult is actually related to the captain's father, and that the ultimate form of mecha fusion, the "Star King", hides the secret that connects the universe.
