Avid couldn't help but chuckle. He didn't remove the inspection device from Su Duan's forearm, but connected several more interfaces to it and said, "I'll do a drug sensitivity test for you."

Although he didn't understand, Su Duan still cooperated and stayed still. This test took a bit longer and was a bit uncomfortable. It was a full five minutes before the device stopped.

When the device was removed, Su Duan's entire arm was a bit numb. Audrose helped him rub it gently. Near the elbow, he found an almost invisible needle mark and frowned, asking, "Does it hurt?"

Su Duan shook his head dumbly, "It doesn't hurt." He hadn't felt the sensation of the needle prick. If Audrose hadn't pointed it out to him, he probably wouldn't have discovered this mark until the end.

He asked Avid, who was putting away the device, "What is this?"

"The mark left by the gene tissue collection needle. The tissue will be inactivated by disinfectant after extraction and analysis is completed." Avid glanced at him, really wanting to roll his eyes at his suspicion of everything: "It's not like you haven't done it before... Oh right, you indeed haven't done a drug sensitivity test in a long time. Want to do one?"

The next second, Avid overturned his own proposal just now: "Forget it, you come to the medical room when you have time today and do a full-body checkup before going to the battlefield."

Audrose grunted in agreement.

Avid pulled up Su Duan's test results on his personal terminal, and the more he looked, the more he frowned.

The facts proved that this drug test was indeed very necessary. The test results indicated that the black-haired slave in front of him had varying degrees of allergic reactions to thirty percent of the drugs currently circulating in the empire.

He was really... not easy to keep alive.

Avid compared the list and took some time to prescribe a few bottles of medicine.

"These are some medicines that can alleviate the sequelae of wormhole jumping. For mild dizziness within ten minutes, there's no need to take them. Only take them if symptoms of body swelling and fever occur. His physique is different from the average physique of the imperial people. I've separately marked the dosage, so don't take it according to the instructions. Consult me anytime if there are problems." Avid took out the medicines from the medical kit, wrote a label for each one, and handed them to his elder brother one by one.

After Audrose explained the dosage to Su Duan one by one, he stuffed them all into the spatial button on Su Duan's hand.

Avid glanced at the spatial button on Su Duan's hand with the corner of his eye. After seeing clearly that the pattern on it was an iris, his eyes widened slightly.

Among the royal family, the only one who would use this style of spatial button was Empress Sefir.

So the source of this spatial button was already very obvious.

Including this time, he had only seen this black-haired slave twice in total. The first time they met, he was busy getting beaten up and didn't have the energy to notice what Su Duan's ring looked like. Just now when he was examining Su Duan, he used the other arm, so he hadn't noticed it all along.

It wasn't until Audrose put the medicine in that he discovered the uniqueness of this spatial button.

Even the things left by Mother had already been put on someone else's hand?

It seemed that his elder brother had indeed fallen a bit deep for this black-haired slave.

Audrose seemed a bit dissatisfied with him constantly glancing at his little slave, hinting, "Is there anything else to pay attention to?"

Avid was very tactful: "No, I'll go first. Remember to come to the medical room for a checkup."

Although the human body had evolved to the point where it was almost completely immune to cosmic radiation, there was still an extremely small probability that genes could be modified. In order to avoid dangers that might be caused by medication and other factors after being injured on the battlefield, soldiers at the frontier had to be examined at regular intervals.

To be more rigorous, a basic screening also had to be done before going to the battlefield.

However, the reason why Avid was so attentive was not because of this. For someone who had evolved to Audrose's level, it was almost impossible to be affected by cosmic radiation. The only reason he would urge Audrose to do the checkup was because—

After the mecha reimbursement money arrived and he injected new funds into the research project, the project achieved its final breakthrough and now urgently needed several copies of the research subject's gene tissue.

Audrose nodded, "I'll go over after the first phase of the jump is over, which should be around three o'clock in the afternoon."

Avid: "...Okay."

As for why he had to wait until the first phase of the jump was over?

Of course, it was to accompany that black-haired slave. For such an obvious answer, Avid refused to ask.

As a single man, he didn't want to find himself some dog food to eat for no reason.

......

The starship traveled for a total of seven days. Considering the distance from the capital star to the frontier defense line and the huge amount of materials loaded on the transport ship, this time was already unbelievably short.

Of course, the price was high-density and high-intensity wormhole jumps.

In the later period, Su Duan indeed showed the sequelae Avid mentioned. His joints ached as if he couldn't lift them. The nervous Audrose got up in the middle of the night to feed him medicine.

The effect of those medicines was immediate. Su Duan took them on time for two days and never felt uncomfortable again, but his energy was still not good. As soon as he got off the starship, Audrose half-hugged him and let him rest in his bedroom at the base.

Not wanting to expose the little slave in front of people so soon, they still took the encrypted passage.

After receiving the news that the Marshal was about to arrive, the generals at all levels who were waiting in the conference room in high spirits had to wait a full twenty minutes before they saw their Marshal's figure appear at the door.

Since that sudden attack, they had urgently reinforced the defense line adjacent to Area B and raised the alert level, but since then, the beast horde had never launched a large-scale attack on the defense line again. Occasionally there were small groups, but they were of a very normal scale.

Those beasts were still the same as before, with physical strength higher than intelligence, not showing any of the order and cunning seen in the surveillance video that night.

It was as if that ruthless and silent attack that day was just an illusion to them.

......

After the meeting, Mosi was hooked around the neck by someone, who asked curiously, "Didn't the Marshal arrive at 7:30 in the morning? Why did he only come to the meeting at almost 8 o'clock?"

The tradition of Audrose was to organize a meeting as soon as he arrived at the border, and the time from disembarking the starship to reaching the conference room would not exceed ten minutes. Today's arrival was indeed a bit too late, which was quite unusual.

But the Marshal still looked as stern and hard as ever, as if nothing had happened. None of them dared to ask this question to his face.

"..."

Mosi was speechless for a moment, and brushed off the hand clinging to his neck, "How would I know? I don't follow the Marshal's ass all day. I'm the adjutant, not a personal assistant, okay?"

In fact, he did know, but the reason "the Marshal went to settle his delicious little slave that he brought" was not something anyone would believe even if he said it.

He would probably be "taught a lesson" on the training ground for making jokes about the Marshal.

He wasn't going to ask for trouble.

Anyway, with the person here, these people would find out sooner or later.

There will be a time when their jaws will drop in shock.

"Alright, you and your tight lips." His colleague patted his shoulder hard. After receiving a murderous glare from Mosi, he guiltily rubbed Mosi's shoulder and muttered, "If you don't want to say, then don't. No need to be so fierce."

Just as Mosi had thought to himself, even if he didn't say it, the reason for the Marshal's delay that day was quickly found out.

As long as a person exists, they will always leave traces, let alone that Su Duan could not possibly stay in Audrose's bedroom forever.

So Audrose had no intention of concealing his existence. After Su Duan had fully rested and recovered his spirits, he began to take him out for activities.

For example, going to the cafeteria to eat.

The supplies provided by the Delaire Empire to the defense line were very abundant, and this time's replenishment even generously included many fresh vegetables, enough to improve the meals of the entire army for half a month if used sparingly. Therefore, the cafeteria was filled with a joyous atmosphere.

But this atmosphere suddenly froze when their Marshal brought in a black-haired boy.

Looking at the boy's clean and delicate face, and then at the Marshal's hand resting on the boy's shoulder with an unmistakable possessiveness and intimacy, almost everyone was stunned and forgot about the precious and tempting vegetables in front of them.