That Ray of Light in the Starry Sky

Since the ancestors of the Du family discovered the properties of light, generations of people have worked hard on research, and after two thousand years of technological iteration, Blue Star has opened an era of civilization with light as the core. Light has become an all-embracing carrier, penetrating into every aspect of production and life. It can record and preserve information at the cost of consuming its own inherent "structural capacity", including the most mysterious trace images of "the passage of time". It can carry, store and deliver almost any form of energy with near perfection. It can wrap material entities and even carry living bodies to achieve light transmission. Human beings' dependence on light has been deeply rooted in the bone marrow, and it is almost impossible to escape. People once thought that light was inexhaustible and inexhaustible. People are greedy and vain. A giant artistic projection sculpture that burns massive light sources pointlessly in order to demonstrate power and wealth. Light constitutes the brilliance of the city that never sleeps, and the torrent of light-sensing information covering every corner of the world is used without restraint. However, what they don't know is that every time it is used, every time it releases its contents, the structure of light itself as a "container" will undergo irreversible and permanent loss and dissipation. Until fifty years ago, when people discovered the truth about the "consumable" of light, it was already too late. The crisis of running out of light sources has already occurred and is irreversible. For the survival of the race and the continuation of civilization, people have to embark on a journey of seeking light.