Greed is the source of human progress, but also the root of human sin! The past is gone forever.,The policemen surrounding them backed away, one by one taking out a thumbnail-sized brooch from their pockets and tossing it to the ground. In an instant, the thumbnail-sized brooches swelled up, transforming into black shields in less than a second.,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.。