The ones who came through the portal were ordinary soldiers from the Dragon Country's military.
The first batch of ordinary people to arrive in the Immortal-Demonic Great Universe were fully studied by Dragon Country's experts and scholars for their vital signs.
Fu Tianhua was one of those ordinary people with no cultivation.
When the Dragon Country's military recruited volunteers, he thought for an hour before signing up.
He still clearly remembered what happened when he registered.
After training, he looked at the Dragon Country's soldiers with cultivation and felt envious. After all, those with cultivation far surpassed him in strength. After the day's training ended, the base began broadcasting a call for volunteers to enter the Immortal-Demonic Great Universe for an experiment. The experiment was to see if the high-level spiritual energy in the Immortal-Demonic Great Universe had any harmful effects on ordinary people.
Fu Tianhua's interest was immediately piqued upon hearing that he could go to the Immortal-Demonic Great Universe. He immediately went to look at the recruitment notice posted.
The notice stated that experiments had been conducted on mice in the Immortal-Demonic Great Universe. The mice did not die or suffer any harm there; instead, their physique even improved. The biologists deduced that if ordinary people entered the Immortal-Demonic Great Universe, their physique would definitely be enhanced. However, the experts also said that the probability of this deduction was over ninety percent, but there were still some unknown risk factors. There was a possibility of death. Therefore, the volunteer recruitment notice also included advice for those who wished to participate to think carefully.
After an hour of contemplation, Fu Tianhua decided to sign up and took action. He went directly to the military volunteer registration desk to sign up.
After signing up, the registration office did not immediately approve him. Instead, they told him to go back and continue to consider.
After three days, the relevant staff found Fu Tianhua again to confirm.
"Fu Tianhua, after three days of consideration, you can still back out of this volunteer selection. Have you thought it through?"
Fu Tianhua said, "I've thought it through these past three days. I want to participate in this volunteer program."
The staff member said, "Very good, then sign here. However, signing does not guarantee you'll be selected. You'll have to wait for further selection later."
Fu Tianhua asked, "Not guaranteed? So, many people have signed up!"
The staff member nodded and said, "That's right, many people have signed up for this volunteer program. The number is too large, and we don't need so many volunteers. Therefore, selection is still necessary."
Fu Tianhua exclaimed in surprise, "There's a risk of death, and yet so many people are signing up? How many people have signed up?"
The staff member said, "It's not that dangerous. If there's any danger, we'll return immediately through the portal. Emergency measures are in place on both sides. Everyone considers these things. So, the number of applicants is very high, over ten thousand already."
Fu Tianhua said, "Over ten thousand applicants. And how many volunteers are needed this time?"
The staff member said, "Only ten volunteers are needed this time."
Upon hearing that only ten people were being recruited, Fu Tianhua felt a pang of disappointment. He thought the chances of him being selected were slim.
And so, after another three days, Fu Tianhua actually received the news that he had been accepted.
Thus, Fu Tianhua, along with nine other volunteers, became part of this experiment.
After some simple preparations, Fu Tianhua and the other nine volunteers, a total of ten people, arrived at the base set up next to the portal.
The staff first attached various testing instruments to Fu Tianhua. Then, ten hovercraft, filled with various medical equipment, carried Fu Tianhua and the other volunteers through the portal into the Immortal-Demonic Great Universe.
"We have entered the Immortal-Demonic Great Universe, everyone prepare for emergency rescue."
These medical personnel were all cultivators. Beside them were various biologists, experts who were watching the data on the instruments.
"Volunteers, how are you feeling? Do you have any strange sensations in your bodies?"
Each volunteer was in a hovercraft.
Beside Fu Tianhua, a medical researcher was asking about his condition.
Fu Tianhua said, "I feel very good right now, very energetic. I don't feel uncomfortable."
A researcher stood by the monitor, looking at the data displayed. He said, "The data is good. No dangerous signals have appeared."
The research liaison said, "The data for the other volunteers is also stable. The person in charge has ordered the next phase."
Then, the side of the hovercraft slowly opened. Once fully open, Fu Tianhua saw the scenery of the Immortal-Demonic Great Universe.
What Fu Tianhua saw first was the base being built by the Dragon Country people, followed by the forest formed by hundred-meter-tall trees behind it.
A look of joy appeared on Fu Tianhua's face. He had finally arrived. It was truly wonderful.
After Fu Tianhua calmed his emotions, he could feel that the surrounding air was excellent. As he breathed, he felt his physique improving.
The researcher next to him, looking at the monitor, said, "Since opening the side of the hovercraft, the volunteers' bodies have been enveloped by spiritual energy. This is our second phase. I didn't expect that after the second phase, the volunteers' physiques would actually strengthen."
Fu Tianhua stayed there for an hour. After an hour, the researcher, who had obtained a large amount of data, asked, "Mr. Fu Tianhua, an hour has passed. How are you feeling now?"
Fu Tianhua replied, "I feel very good."
The researcher asked, "Mr. Fu Tianhua, you can choose now. You can either return to the Dinosaur World, or continue staying in the Immortal-Demonic Great Universe for another hour."
Fu Tianhua said, "I'll stay here for another hour! I feel very good right now. I think I can stay here longer without any problems."
Then, Fu Tianhua continued to stay there for another hour. The other volunteers also made the same choice.
After the ten volunteers stayed there for two hours, they were brought back to the Dinosaur World. In the Dinosaur World, they underwent daily physical examinations. For several consecutive days, no harm to the volunteers' bodies was found.
Subsequently, the volunteers began to increase their time spent in the Immortal-Demonic Great Universe.
After a month, the Dragon Country selected one volunteer to stay in the Immortal-Demonic Great Universe long-term.
That volunteer was Fu Tianhua.
Later, after Fu Tianhua stayed in the Immortal-Demonic Great Universe for another month, he actually sensed spiritual energy and entered the Qi Refining stage in his cultivation. The Dragon Country also learned that it was not harmful for ordinary people to enter the Chu Yun Planet in the Immortal-Demonic Great Universe. Thus, the Dragon Country began sending more and more ordinary people into the Immortal-Demonic Great Universe to cultivate.