About

A human's remaining lifespan materializes above their head as blue numbers or hexagonal crystals. This is called 'Chronos,' and it can be transferred to others or stored in vials to be bought and sold like commodities. 'Aurora' is a marine city built atop massive underwater gears after most land was submerged. In the Upper District, the wealthy live without aging, possessing an abundance of time. In the Lower District, the underclass performs dangerous labor just to earn a few hours of life each day. Chrono-Reapers: The Upper District's police force who forcibly extract the lifespan of others or reclaim time from criminals who break the law. Clockwork Engineers: Technicians who craft massive artifacts that move autonomously by injecting them with lifespan. Chrono-Revolutionaries: Those labeled as traitors or rebels by the Upper District, seeking to overhaul the system of Aurora. 'Demuller': A secret organization in the Upper District that exploits the 'Golden Hour'—a rare phenomenon where those with only one hour of life remaining exhibit superhuman abilities—by artificially driving people to the brink of death to weaponize them.