"Ah!" Seeing over 500 ministers at the Tribulation Stage instantly turn to dust, the king was stunned.
"How could this be?" The other dozens of giants, also at the Mahayana stage, stood frozen, looking at Zhou Hong with utter terror.
"Are you still able to smile, Your Majesty?" Zhou Hong scoffed.
"Kill them for me," the king snapped back to his senses and ordered the other dozens of Mahayana experts to attack Zhou Hong simultaneously.
"Unfortunately, it's useless." Zhou Hong unleashed the Immortal Slaying Sword Formation again.
A blinding white light flashed, and after tens of seconds, the dust settled. There was no trace of the Giant King or the other dozens of Mahayana giants in the air; they had all turned to ashes.
Zhou Hong took a deep breath. Next, he would purge all the giants here. However, the number of giants was in the tens of billions, and the thought of killing so many filled Zhou Hong with a sense of burden.
"Grandpa, what should I do? Am I really going to kill tens of billions of giants? It will take me at least ten or twenty years here just to kill them," Zhou Hong asked his grandfather.
"Ten or twenty years is not long."
"But won't killing so many people increase my sins and cause difficulties in my future cultivation?"
"You worry too much. In the Immortal Realm, some people can wipe out an entire family or sect, involving tens of millions or even hundreds of millions, and no one ever says it affects their cultivation. In the Immortal Realm, the annihilation of certain races is common. It's normal for you to want to exterminate the giant race now, especially since you must do it for humanity."
"If that's the case, then I'll spend ten or twenty years to exterminate them." Zhou Hong made up his mind, especially since these giants had previously annihilated hundreds of billions of humans.
"You don't need to spend so much time. Use your sub-world to absorb them city by city. You'll quickly absorb all the giants here into your sub-world. Once they are in your sub-world, a single thought can annihilate them."
"Good."
Thus, Zhou Hong traveled to the various cities of the Giant Kingdom. Every time he arrived at a city, he used his sub-world to absorb all the giants in that city into it.
The entire Giant Kingdom had hundreds of cities. Even if Zhou Hong absorbed two cities a day, it would only take a few months to absorb all the giants into his sub-world.
From then on, there were no more giants on the Deep Sky Continent, and it became a land of empty cities.
Of course, there might be some scattered giants in remote mountains and forests, but they were no longer a threat and could not form any significant force.
Furthermore, Zhou Hong couldn't cleanse everything perfectly. Leaving some giants behind would also pose a future threat to humanity settling on this continent, which would be beneficial for their future development.
Zhou Hong entered his sub-world. The total number of giants he had absorbed was 38 billion.
Zhou Hong looked at the densely packed giants below him, like ants, and was shocked.
The Earthlings living in his sub-world numbered only three billion, and the giants who had arrived now were ten times more numerous.
However, Zhou Hong hesitated whether to annihilate all these 38 billion giants.
"Zhou Hong, what are you still hesitating about?" his grandfather asked.
"Grandpa, why don't we spare their lives? Killing so many beings still feels like a sin, and there are so many giant children among them."
"Surely you don't intend to let these giants live in your sub-world? Although your sub-world can accommodate them, they will eventually encounter the Earthlings living there. At that time, won't the Earthlings be like ants?"
"Don't worry about that. This is my sub-world, and I make the rules. With a single thought, I can shrink all 38 billion giants to the size of ordinary Earthlings, removing their advantage. Their only remaining advantage would be that they are cultivators. This way, it can create a 'catfish effect,' putting more pressure on the Earthlings here. Mutual competition can also help the Earthlings grow. Remember, the stronger the beings in my sub-world, the stronger I become."
"Indeed, it's a good idea. Without any threat, it's not conducive to the growth of the Earthlings here. However, these giants are all cultivators. How can the Earthlings here be their match?"
Zhou Hong chuckled, "The Earthlings here are developing technology in my sub-world and have created many powerful thermal weapons. Although they cannot match the giants, they can find ways to deal with them. Moreover, only under such pressure for survival can they grow faster."
Zhou Hong had decided to shrink all 38 billion giants by a hundred times proportionally, making them appear like ordinary humans.
And so, all 38 billion giants were reduced to ordinary people, at least in appearance, indistinguishable from regular humans.
Zhou Hong dispersed these giants across various regions, letting them fend for themselves from then on.
Zhou Hong quickly returned to his own home.
The Earthlings were still unaware that over thirty billion more beings had arrived in the sub-world.
"Zhou Hong, you're back! We have something to report to you," as soon as Zhou Hong returned home, Changsun Qinghe and the others rushed to greet him.
"What is it? I also have something to tell you," Zhou Hong smiled slightly, feeling a pang of ruthlessness in his heart. He had originally intended for the Earthlings to enjoy a comfortable life in his sub-world, but now he had introduced 38 billion enemies. He didn't know how many Earthlings would die in the future. However, as the master of the sub-world, he had to do this. He couldn't just raise them like fish, letting the three billion Earthlings live out their lives without illness or hardship.
"What do you have to say? You go first."
"No, you go first. What do you need to tell me?"
Changsun Qinghe smiled, "The scientists here have synthesized several entirely new substances that can cure cancer. It's a pity that this is not Earth as it used to be; people don't get sick before the age of 100, so curing diseases has lost its meaning. However, even without the meaning of treating illnesses, these newly synthesized substances have opened up new avenues for human development. That is, they can be used to modify genes, making humans here stronger. Currently, scientists are working tirelessly on research."