The Era of Dog Rights

Hundreds of years ago, the nameless European island country "Bakavia" was a world dominated by humans. As humans' greedy hunting and cruel experiments on animals reach their peak, a "great awakening of consciousness" triggered by a mysterious virus sweeps the world. Dogs gained near-human intelligence and language abilities, while human intelligence generally regressed to canine levels—a dramatic change that dog historians call the "apocalyptic reversal."