When he came to China, he never concealed his identity and did not use any special channels, so it was not surprising that Gu Yibei was able to find out about him.

"I can find information about you, Dad, but I can't find information about my mother-in-law." Gu Yibei said.

“…”

"According to my understanding, China is different from other countries in many ways. For example, in China, there are still no aristocratic families. And twenty years ago, there were very few wealthy families in China. I have checked them all, and I don't think anyone can have an unlimited black card."

From this process of elimination, it can be determined that my mother-in-law Xi Luo is not from the capital of China, and she is most likely a daughter of a foreign family.

"I've checked all the people with the surname Xi and anyone with 'Xi' or 'Luo' in their names. I've even checked all the identifying information on this list, and not a single one matches."

It was already difficult to investigate events from twenty years ago. Back then, unlike today, we didn't have computers and system records to search for anything. Gu Yibei spent a lot of time to compile a list of all the people who entered the country during those years. After sifting through the list, there were still so many people that he had to check them one by one.

He really spent a lot of time and energy to get this insignificant clue.

Looking at the silent Gu Yibei, although his next words were a bit cruel, he had to say them.

"Dad, if nothing unexpected happens, the name Xi Luo is fake. Mother-in-law didn't tell you her real name when she first met you."

Although Li Yuan did not tell Xi Luo that his name was Ling Yin Warrens at the time, the name Li Yuan was indeed the name he took from his mother in China, so it was not a lie.

"..." Li Yuan's body trembled, his face turned pale and weak.

His eyes were a little dim, but he chose to remain silent and did not refute Gu Yibei.

After Gu Yibei left Country Y, his main forces were all in the capital, so what he had found out was definitely not as comprehensive as what he, the host, had found out.

Since Gu Yibei couldn't find any clues about Xi Luo, it proved that he really tried his best.

Xiao Luo...has a secret from him.

"Of course, we cannot deny that my mother-in-law used an illegal household registration when she came to Beijing," said Gu Yibei.

Some children of powerful nobles usually use illegal household registration to hide their identities and whereabouts.

As the name suggests, a black household has no information entered into the system. If someone goes out with a black household, no information about her can be found at all, making her very secretive.

After Gu Yibei finished speaking, he paused for two seconds and continued, "If this is true, it proves that my mother-in-law is not an ordinary person."

After all, how could someone who can conceal all her whereabouts without anyone noticing be the daughter of an ordinary family?

Looking at Li Yuan, Gu Yibei's eyes were deep: "Dad, it's up to you now."

Although he is a family member of Country Y, his father has been handling the family business for many years. He has been engaged in business since he came out and has never been involved in family affairs.

In comparison, Li Yuan, as the patriarch of the Warrens family, already had a lot of connections and relationships. In addition, he had been in the aristocratic circle for so many years, so he was better than Gu Yibei at screening which aristocratic families could afford the unlimited black cards.

"I've asked Charleson to investigate," Li Yuan finally said. "But it involves the entire world, so it'll take time to investigate it all."

After all, it takes time to investigate aristocratic families around the world.