Princess Diya's eyes lit up and she said, "Brother Gu Yan, you are so smart. After I learned about this problem, it took me almost half a month to solve it. You figured it out so quickly."

Diya looked at the emperor and said, "Your Majesty, Brother Gu Yan has answered my question, so let Brother Gu Yan be my husband."

As soon as Princess Diya said this, everyone looked at Yun Xiangye.

After hearing Gu Yan's answer, Yun Xiangye thought about it in her heart and her face was filled with sudden enlightenment.

Suppose this golden lock is in A Yue’s box.

If Ah Xing was telling the truth and Ah Yue was lying, then Gu Yan asked Ah Xing, if he asked Ah Yue, how would Ah Yue answer? Ah Yue would definitely say that the golden lock was in Ah Xing's box, then Gu Yan could be sure that the golden lock was in Ah Yue's box.

On the other hand, Ah Xing was telling a lie and Ah Yue was telling the truth. If Gu Yan asked this, Ah Xing would have to lie, and she would definitely say that it was in her own box.

The final result of the answer is the same. After Gu Yan asked this question, no matter how Ah Xing answered, he just had to choose the opposite answer. It was indeed a puzzle that even a three-year-old child could solve.

Yun Xiangye's expression of sudden enlightenment as if she had solved the mystery left Gu Yan speechless.

Gu Yan walked to Yun Xiangye's side, picked up Nuonuo and said, "Princess, I'm married now, and my daughter is already two years old. Nuonuo, call me Aunt Princess."

Nuonuo called the princess aunt obediently.

Diya just smiled lightly and said, "I heard that you need to have three books and six ceremonies to get married in Dasheng. The most important one is the marriage ceremony. As far as I know, Brother Gu Yan, you don't seem to have a marriage certificate with her, nor have you had a marriage ceremony. Doesn't this count as a marriage?"

Yun Xiangye saw all kinds of looks. If she had heard this four months ago, she would have been extremely angry, but now she was calm.

But even if she wasn't angry, Yun Xiangye still hated Diya's blatant provocation.

Gu Yan said, "Xiangye and I did have a wedding ceremony."

His Majesty also spoke up: "Princess Diya, Prince Ning is indeed married. You might as well find another husband."

Diya just looked at Gu Yan and said, "Your Majesty, this riddle was posed by my Xiwan Imperial Master. He said that the first man to solve it would be my husband. Now that Brother Gu Yan has solved it, Diya has confirmed that Brother Gu Yan is her husband."

Gu Yan frowned and said, "Princess, I've told you many times that I'm married and it's impossible for me to be your husband anymore."

"Diya doesn't mind you divorcing your wife and remarrying." Princess Diya looked at Gu Yan.

Yun Xiangye looked at Gu Yan leisurely. Gu Yan knew that Diya asked this question in order to choose a husband, but he still wanted to step forward.

Diya is the Princess of Xiwan. If Gu Yan marries Princess Xiwan, his future will be ruined.

Yun Xiangye had no intention of helping Gu Yan out of this predicament.

Gu Yan said, "How can I divorce my wife for this? Princess, it would be better for you to find another good husband."

Diya said: "I won't. Since you have already answered the riddle posed by the Imperial Master, you are my husband. Even if you let me be your concubine, I will be happy to do so."

Prince Musa of Xiwan stood up and said, "Sister, as the Princess of Xiwan, how can you be someone else's concubine? Furthermore, Gu Yan's wife is just a lowly merchant girl. As a princess of a country, how can you be inferior to her?"

Diya said, "Brother, the Imperial Master said that the man who can solve this riddle is Diya's ideal husband. Diya can only believe the Imperial Master's words and decide that Gu Yan will be my husband, whether as my wife or as my concubine."

Gu Yan hugged Nuonuo and frowned, then said: "My family has an ancestral precept that we are not allowed to take concubines."

Diya said: "Then I am also willing to follow Brother Gu Yan without any status and recognize Brother Gu Yan as my husband."

Gu Yan's brows furrowed even more deeply. He had no intention of arguing with Diya. Anyway, there was no way he would marry Diya.

But what made Gu Yan angry was that Yun Xiangye didn't say a word to help him out today.

Seeing this, Queen Wei smiled and said, "I've always heard that Xiwan is good at singing and dancing. Today, the dancers in the music studio have specially learned Xiwan's dance music. Diya, you can also give them some pointers."

Diya’s marriage was no longer mentioned, and Yun Xiangye only focused on feeding Nuonuo.

Gu Yan lowered his voice and asked Yun Xiangye, "Why didn't you say a word just now?"

Yun Xiangye said, "What did I say? I didn't know what to say or what not to say. If I said something I shouldn't have said, it would cause the two countries, Dasheng and Xiwan, to become enemies. My sin would be great."

Gu Yan frowned as he listened to Yun Xiangye's words. "After all, I am your husband now. Others are trying to snatch you away from me, and you haven't said a word? You haven't said a word to help me out?"

Yun Xiangye said, "If you hadn't come forward to solve the problem, Princess Xiwan wouldn't have bothered you. You still know that you are my husband now."

Gu Yan said, "Jingru just said that, and Wei Qian is convinced that I'm just bragging. If I don't solve the problem, the people of Xiwan will definitely make fun of Dasheng, and the people of Dasheng will become a laughing stock."

Yun Xiangye's face darkened as he said, "You chose to solve the problem yourself. You don't have to blame me for not helping you."

Gu Yan looked at Yun Xiangye angrily, "After all, I'm still your savior, right?"

Yun Xiangye said, "My sister can swim too. If you hadn't gone down into the lake to save me, I wouldn't have died in the lake."

Gu Yan took a deep breath, "What about the love we've had as husband and wife for the past three years?"

Yun Xiangye said, "Shouldn't I be asking you this? You still know the feeling of being married for three years."

Gu Yan and Yun Xiangye's voices were not loud, and only the two of them could hear them, but others could tell that it was the two of them who were quarreling.

After the palace banquet, Yun Xiangye carried the already asleep Nuonuo back to the carriage.

Gu Yanze was summoned to Taiji Palace by His Majesty.

In the Tai Chi Palace.

His Majesty looked at Gu Yan and said, "Are you willing to marry Princess Xiwan as the Crown Prince's concubine? Giving her a concubine would be fine."

Gu Yan hurriedly said, "Uncle, my grandmother left us a family precept that prohibits taking concubines. Besides, the puzzle I just solved was also an act of fame for me. I can't possibly marry Princess Diya."

Zhao Yun also said to His Majesty: "Father, Gu Yan really cannot marry Princess Diya."

His Majesty said, "Well, I will naturally not let Princess Diya marry Yan'er. Diya is a princess of a foreign race, so she naturally cannot marry an important official in the court. If Xiwan is sincere in wanting to be on good terms with Dasheng, then she can marry Zhao Jing. This will also be a sign of my Dasheng's appreciation for Xiwan."

Outside the Taiji Palace, Zhao Jing, who was about to ask for an audience, frowned slightly when he heard what His Majesty said.

"Your Majesty, the Prince of Chu has arrived."

"Send him in," said His Majesty.

Zhao Jing entered the palace and bowed deeply to His Majesty: "Your Majesty, I, Zhao Jing, pay my respects to Your Majesty."

His Majesty looked at Zhao Jing and said, "Jing'er, you have seen Princess Xiwan today and know how beautiful she is. I would like to issue an imperial decree to grant you a marriage."

Zhao Jing knelt down and said, "Your Majesty, I already have a girl I like."

His Majesty asked, "Why did I hear that the girl you admired has already married?"

Zhao Jing glanced at Gu Yan with jealousy, clenched his hands and said, "I now have another girl I like. I like Wei Xi. I hope Your Majesty will help me and Wei Xi get together."