In a world where supernatural powers are commonplace, Kamiya Kazato stands out as one of the few without any abilities. However, on his birthday, he unexpectedly unlocks the power to control any sound, a rare and unprecedented gift. As his newfound power spirals out of control, the authorities target him for elimination, deeming him a threat to society. Fleeing from the Self-Defense Force, Kazato finds himself aided by the enigmatic group known as 'Anonymous,' whose true intentions remain shrouded in mystery.