Glittering City 13th

One day, a certain city released a video from several decades ago. Finally, humans understood why that explosion occurred, the one that changed all of humanity.,Brilliant City, a city built within massive defensive walls. It is called Brilliant City because it was the first human city to utilize planetary unique materials to develop an artificial sun. It is a gigantic city with a population exceeding 30 million.,Light and shadow materialize. This new material, extracted from a planet that collided with Earth, has become humanity's greatest invention of the century through research. It successfully uses special materials as a medium to aggregate light and shadow, resulting in the super-science of turning them into physical objects.。