Born in the humming human-factories of Brim and raised under the agonizing discipline of Overseers who punish with "Loves"—pulses of psychic pain—Seven is just a designation in a vast, dystopian machine. As a Trofos serving the high-ranking Clergy of the Anomo, her existence is defined by the Amfiesi: complex, layered uniforms that dictate her status and distance her from her own flesh.

Alongside her companion, Two, Seven maneuvers through a society where blood is currency and surveillance is absolute. In this world, the simple act of touching another is a transgression that echoes through the moist, silent walls of the City. But as the "Movementists" whisper of revolution and the boundaries between humans and their anomalous masters begin to blur, Seven is forced to confront the truth of her own artificial creation. Haunted by the physical void of her engineered body and the memory of those lost to the system, she must decide if she is a cog in the machine or the spark that will ignite its destruction.