Cat City Era: Awakening of Civilization

Human beings have always thought that they are the only civilization on this planet. Until a stray black cat heard the sound deep in the city. Trash cans are the granaries for homeless people. The sewers are the empire of the rats. Abandoned buildings are the territory of the cat tribe. In the gaps invisible to humans, another civilization has existed for thousands of years. Obsidian, an abandoned black cat. It originally just wanted to live. Find food. Keep your partner. Leave your name in this city. Until an unexpected awakening, it discovered a number hidden in its body: A-047. An abnormal existence that has never appeared in millions of years. Because this planet hides a forgotten secret: The earth is not the home of life, but a prison for the soul. Countless lives are born, die, and are forgotten in reincarnation. The ancient civilization hidden underground in the city is waiting for the next eradication. Cat Clan, Rat Clan, Dog Clan, Crow Clan... A dormant second civilization begins to awaken. When animals are qualified to choose their fate for the first time, they must face a problem: If humans are the masters of this world, So what are animals? Accessories of life? Or is it the starting point of another civilization? The era of Cat City begins here.