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In the vast universe, countless planets rotate, countless civilizations spread, and countless creatures exist! Just like the biological chain, some civilizations are at the top and some are at the bottom! The law of the jungle and the survival of the fittest also applies to countless civilizations! The nobleness of living things depends on genes! ... Towering city walls and three-meter-thick steel city gates! The city wall is made of countless huge stones built with polymer cement compound. It is hundreds of meters high. It can be said that the protection reaches to the sky! The huge bricks are covered with traces of battles, claw marks, gun holes, and broken debris, giving the city wall a desolate and primitive feel. Troubled times have arisen, the people's genes have mutated, cultivators have emerged in endlessly, wormholes have exploded, and the planet Earth where humans live has turned into a vast continent. Wormholes connect various planets, and aliens invade, resist, and fight. Human beings only want to protect their homeland, and do not want to be enslaved. They cultivate, rise, and fight vigorously. Countless people are marching forward for the great cause of resistance...