Before Mo Zichen could finish speaking, Xu Nianxia reached out and covered Mo Zichen's mouth.

At that moment, a ticking sound came from the ward.

Yan An, who was still eating out, got up and went to the ward.

"An'an, look, why did it suddenly start ringing?"

Yan An repositioned the pulse oximeter that had been clipped to Xu Nianxia's finger.

"You've just had surgery, so don't do anything too strenuous. If you want to show affection, wait until you're fully recovered."

Xu Nianxia felt a little embarrassed by what was said and glared at Mo Zichen, "It's all your fault, why did you make such a silly vow?"

“You men always make oaths. If oaths were effective, what would be the point of laws? If you ask me, if Zichen ever bullies you, just tell me, and I'll stand up for you.”

Upon hearing this, Xu Nianxia immediately chimed in, "I think it's a good idea. Anyway, there's no one An'an can't beat. She'll definitely teach you a lesson for me."

Yan An was relieved to see that Xu Nianxia was in good spirits.

"No problem. I'm leaving now. You two can continue showing off your love, but remember, don't make any big movements."

Mo Zichen held Xu Nianxia's hand tightly, "Don't worry, I won't let that happen."

After Yan An and the others finished eating, Yan An took the hair and toothbrush that Yue Xiyuan had given him.

"These are all the instruments needed for DNA testing: high-throughput gene analyzer, PCR amplification instrument, water purification system, DNA purification system, incubator, shaker, pipette..."

Su Jingzhan had also read several books about DNA and had some understanding of it.

Fortunately, the books in Yan An's space are available in both pure English and pure Chinese versions, and luckily, the script used in the Tiancang Continent is almost identical to modern Chinese.

Therefore, Su Jingzhan found the medical books in Yan An's space easy to read. Apart from some obscure and difficult words, the rest were quite easy to understand.

"Why do we need to do an NDA test? Has something happened?"

Su Jingzhan was somewhat confused.

In addition to the instruments that Yan An used frequently, this laboratory also has many instruments that Yan An doesn't use often.

Gu Yanan's modern parents knew that Yan An was studying medicine not only because he liked it, but also because of Gu Yanan.

So in addition to what Yan An purchased herself, the gifts sponsored by the school and various research institutions, there were also many gifts from Gu Yanan's modern parents.

They hope that Yan An will one day be able to completely cure his body and understand his condition.

Therefore, the instruments and equipment in this laboratory can almost cover all the instruments needed for medical treatment.

"We suspect that Yue Zhixiao is Yan Shaoheng's son, so we asked An'an to do a DNA test."

Su Jingzhan was so shocked by the news that his jaw almost dropped.

"What? You think that Prince Heng of Yan, Yan Shaoheng, cheated on your father? That's incredible! Junior sister, hurry up and do it. I'm getting curious too. Is it really true?"

[...]

After Yan An stained with methyl green, everything was ready, and a test report came out of the printer in a short while.

"They're out, they're out."

Su Jingzhan was quite excited at this moment, "It's been a long time since I've encountered something so outrageous."

Yan An picked up the appraisal report, which clearly stated:

The DNA samples tested showed a high degree of mismatch, indicating no blood relationship. The expert report, based on the DNA analysis results, concluded that there is no biological blood relationship between Yue Xiyuan and Yue Zhixiao, or that such a relationship is not supported.

"You and Yue Zhixiao are not biological brothers."

"So Yue Zhixiao really is not Father's biological son."

Yue Xiyuan fell into deep thought; this was the outcome he both wanted and didn't want.

Although his father disliked Chen Jingshu, he had been bound by that fictitious night all his life.

But from the moment Yue Zhixiao was born, her father tried his best to be a perfect father, playing with Yue Zhixiao, helping him study, and fulfilling all his desires.

For so many years, Father has fulfilled his responsibilities as a father, placing all his debts to Chen Jingshu on Yue Zhixiao. It's ironic that Yue Zhixiao isn't Father's biological son.

These two people had deceived them for a full twenty-eight years.

Yan An sensed Yue Xiyuan's emotions and slowly placed her small hand in Yue Xiyuan's hand.

Yue Xiyuan's jawline tightened, his eyes were bloodshot, and anger and hatred surged and spread in his chest. The air pressure in the laboratory dropped instantly, as if it were suffocating.

"Now we know that Yue Zhixiao is not the son of the late emperor, but whether he is the son of Yan Shaoheng, we do not yet know."

Yan An, who was naturally strong, knew that Yue Xiyuan didn't need comfort at this moment. The greatest comfort was simply to stand by his side and work together to solve the problem at hand.

Words are useless; actions are the most direct evidence of feelings.

Moreover, Yan An understood that Yue Xiyuan was not sad or unable to accept the situation at the moment, but rather felt resentment towards the late emperor and disgust towards Yue Zhixiao and the others.

"So now we need to get Yan Shaoheng's hair and do another DNA comparison between Yan Shaoheng and Yue Zhixiao."

"I'll go to Yuelaike tonight."

"Okay, then be careful."

"If Yue Zhixiao is indeed Yan Shaoheng's son, then isn't Yan Shaoheng's visit to Yue Kingdom this time to lend Yue Zhixiao a helping hand?"

Su Jingzhan had just recovered from the events that had just occurred to him when he suddenly remembered that Yan Shaoheng was still in the Moon Kingdom.

"Yan Shaoheng knows that Yue Zhixiao's rebellion has failed, so why is he still staying in Yue Kingdom? Isn't he trying to use this opportunity to rescue Yue Zhixiao?"

"That's what we're thinking too. The matter of the living dead is definitely related to Yan Shaoheng. He has already hurt Yue Xiyuan once, so this time, I will definitely leave Yan Shaoheng in Yue Kingdom as well, so that the three of them can reunite in the eighteenth level of hell."

Yan An's eyes were cold, and his words left no room for opposition or doubt.

"Such a disregard for human life is worse than that of an animal; keeping them around would only bring more harm."

Su Jingzhan was filled with righteous indignation. Every time he thought of Yue Xiyuan and the Emperor being tortured by the Gu worms and almost dying, he felt so angry that his teeth itched.

If they weren't in high positions and hadn't been so calculating, Yan An would have killed them right now.

If a prince were to die while on a diplomatic mission to the Yue Kingdom, it would trigger a bloodbath between the two countries. Even if the Yue Kingdom did not take the Yan Kingdom seriously, the peace that had been maintained for decades would be destroyed in an instant.

In the end, only the people of the whole country will suffer, which is the last thing they want to see.

Those who hold high positions bear heavy responsibilities; how can they remain indifferent?