Blue Mist Era

When energy towers rose from the ground, people thought they would bring new hope, but they did not know that they were the main culprits in destroying human civilization. A by-product of the tower - a blue fog enveloped the world, and the creatures transformed into extremely aggressive "fog spirits". Under the blue mist, the surviving people struggled to survive, but they still could not escape the ubiquitous blue particles; above the ruins, the former Tower of Hope shimmered, but it still could not illuminate the future of the world. Civilization and order no longer exist, and life is coming to an end. But the future can still change, and nothing is a done deal. Humanity will meet again at the starting point and form new hope. And they will continue to fight, because this is survival, this is responsibility, and this is the last hold of mankind in the Blue Mist Era. The spark never goes out, the hope lasts forever. Even the darkest night will eventually usher in the dawn.