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Seeing that the young man was so scared that his face turned pale, Professor Wei touched his beard with satisfaction and walked into the office.

Chu Jun stepped out of the elevator and passed through layers of verification before finally entering the laboratory door.

He changed into a white coat, and his gold-rimmed glasses reflected a cold light under the cold white light, making his expression even more indifferent.

This research institute covers a large area, so the laboratory that occupies the entire top floor is naturally also very large. However, such a laboratory does not have a single window, and all the light sources rely on the incandescent lamps above the head.

The laboratory is hundreds of meters deep and dozens of meters high.

Of course, only the classified laboratory on the top floor of the institute had such treatment. If the researchers in the lower floors of the tower were to see this laboratory, none of them would fail to marvel at the institute's extravagance and the importance it placed on Dr. Chu's research topic.

In this huge laboratory, in addition to various advanced experimental instruments, there is also a giant fish tank.

The bathtub is three stories high and takes up one-third of the laboratory area, which shows how large the space inside is.

Chu Jun stood in front of the bathtub, looking at the emptiness inside through the bulletproof glass.

The mermaid had been taken away, but the water circulation inside the fish tank was still running in an orderly manner.

The shell beds for the mermaids to live in have also been carefully cleaned, and the algae and corals at the bottom of the pool are even more precious species. Everything is done to provide the mermaids with a comfortable living environment.

If we say that humans simply dote on mermaids, that’s actually not the case.

The first rule written in the researcher's code of conduct is printed in red bold font: [Humans are prohibited from developing feelings for mermaids].

Humans’ attitude towards mermaids is unpredictable. They value mermaids but are also wary of them, and they favor mermaids but are also wary of them.

Take Chu Yun’s laboratory as an example, and you can see the contradictory attitude of the people above towards mermaids.

Dozens of cameras were installed on the top of Chu Yun's laboratory, ensuring that there was no blind spot in the entire laboratory.

These cameras are linked to the people above, allowing them to monitor everything in the laboratory at all times.

If they discover any signs that humans have developed extra feelings for mermaids, the order to take back the mermaids will be immediately handed to Chu Yun, and no matter how far the experiment has progressed, it must be stopped immediately.

Chu Jun has been emotionally indifferent since childhood, and it became even worse after taking over the project. He only had experiments to do, and it was impossible for him to have any special feelings for mermaids, no matter how beautiful those mermaids were.

Ever since the mermaids saw Chu Jun's beautiful face, they have been very enthusiastic towards him without exception.

However, all Chu Jun gave them in return was a cold gaze and an indifferent attitude.

The last batch of mermaids were taken away suddenly, the specific reason is unknown, and no explanation is given.

Chu Jun could only be sure that it was not because he violated the ban.

"Perhaps the decision outside has changed." Chu Jun could only speculate this way.

Fortunately, the experiment was suspended for three days, and a new mermaid will move into the fish tank today.

The algae in the fish tank are green and swaying with the water flow. They are the only life in this laboratory.

Life always has such magical power. The algae full of vitality inevitably made Chu Jun feel a little better.

But suddenly thinking of the delayed progress of his experiment, Chu Jun decided to leave.

He checked the operation of the experimental equipment one last time, turned around and walked out of the laboratory door.

The research was stopped suddenly, and some experimental results needed to be re-verified, so he needed to check the experimental plan again.

The first floor of the institute is probably the most densely populated area in the tower. Hundreds of security personnel are on duty here to ensure that no one can enter the tower.

Of course, no one could get out.

Beneath the high tower built with iron walls, this is the only place connected to the outside world.

Xiao Fang brought Dr. Chu's assistant to the handover area on the first floor.

The handover area is separated from the outside by two walls, and just to enter this place, Xiao Fang and his team need to go through layers of inspection.

The fish tank containing the mermaid was placed in the middle of the room, covered with a thick black cloth.

With the consent of the security personnel, Xiao Fang lifted the black cloth to allow Assistant An to check the mermaid's condition.

"Huh?" The assistant looked at the sleeping mermaid in the fish tank, a little confused, and then looked back and forth again.

Xiao Fang couldn't help but feel terrified when he heard Assistant An's voice. His voice trembled: "What's wrong, Teacher An?"

An Huai couldn't believe that his superiors would make such a stupid mistake. He counted again with his fingers, confirming that there were indeed five. Then he said to Fang Xun in surprise, "Didn't they say that four mermaids were sent here this time? Why five?"

"The number is wrong?" Fang Xun's heart was pounding as he counted along.

"One with a blue tail, two with white tails, one with a green tail, and one with a black tail... They're exactly the same as when he took over?"

"Is it really not 5?" Fang Xun looked at An Huai who was thinking in panic, hoping to get a positive answer.

There were indeed five mermaids in the fish tank, and one of them was particularly beautiful, which left a particularly deep impression on Fang Xun.

The beautiful black-tailed mermaid was sleeping in the corner. The scales on its strong and powerful tail reflected a metallic luster. Compared with the other mermaids, it was obvious that it was not an ordinary one.

Assistant An wanted to nod and confirm with Fang Xun, because he couldn't have remembered the number wrong. The handover document in his hand also clearly stated that there were four mermaids. However, the detailed information about the mermaids afterwards was something only Dr. Chu could access, so he didn't know which mermaid was the extra one.

Just as he was about to report to his superiors, Assistant An met a pair of dark eyes.

His hand holding the communicator suddenly paused, his thoughts confused for a moment, and then he said blankly: "I remembered it wrongly, there are indeed five mermaids."

"That's good, that's good." Fang Xun calmed his pounding heart and felt lucky that he had kept his job.

However, he was so focused on his own heart that was about to fail that he didn't notice Assistant An's abnormality.

A trace of dark mist passed through Assistant An's eyes, and his expression returned to normal, as if the previous daze had never existed.

The security personnel monitoring the surrounding area also turned a blind eye to An Huai's abnormality, and watched with a stunned expression as the fish tank containing the mermaid left the handover area.

"Thank you for your hard work, Xiao Fang. These mermaids are fine. I'll take them with me." After leaving the handover area, Assistant An's tone became more relaxed. "Remember not to bother Dr. Chu in the future. Just tell me about these trivial matters."

"I understand, Teacher An." The wound was repeatedly opened, and Fang Xun seemed to see Dr. Chu's beautiful and cold face again, and his heart trembled.

After An Huai said goodbye to Fang Xun, he pushed the mermaid into the special elevator and returned to the top-floor laboratory.

"Teacher Chu." An Huai saw Chu Jun in the laboratory and greeted him quickly.

"Yeah." Dr. Chu's expression remained indifferent.

Assistant An saw Chu Jun's gaze move away after passing the small fish tank behind him, so he prepared to transfer the mermaid to the large fish tank.

"Wait." Chu Jun suddenly called out to An Huai, and his gaze turned to the corner of the small fish tank again.

Assistant An looked at Chu Jun's sharp gaze and was a little overwhelmed: "What's wrong, Teacher An?"

"What...is this?" Chu Jun pointed to a corner of the small fish tank, his eyes showing surprise, but more of confusion.

Assistant An looked in the direction of Chu Jun's finger and noticed the black mermaid lying in the corner, and breathed a sigh of relief.

"Teacher Chu, this is the first black mermaid discovered outside. Because of its good temperament, it was sent here for your experiment."

"Black... mermaid?" Chu Jun murmured, repeating Assistant An's words. His eyes had returned to normal and no emotion could be seen.

"Yes, Teacher Chu, the higher-ups have entrusted such a precious mermaid to you. This research will definitely make progress!" Assistant An couldn't help but feel happy for Chu Jun when he said this.

Chu Jun didn't say anything else. He just said "hmm" and turned around to continue debugging the instrument.

An Huai was well aware of Chu Jun's cold personality, so he didn't think too much about it and continued to finish the task at hand.

In the small fish tank that neither of them noticed, the black-tailed mermaid slowly opened her eyes, and her predatory gaze fell on the cold beauty.