After a simple exchange, Fan Yu pulled her junior sister and took off with tactfulness.

After the idle people left, Li Yu looked at Zhang Yunming to explain his purpose.

"Zhang Qing, please take me to see the A-zi No. 7 project."

Zhang Yunming had already prepared in his heart and said respectfully: "Abide by the order!"

The three of them quickly set off, left the courtyard and headed to the back mountain.

On the road, Li Yu walked leisurely in the garden, and snowflakes fell in the sky, and before they could get close to their bodies, they turned into mist and dissipated.

"Master Zhang, I wonder what the name of the No. 7 project is said?"

Song Yuan's eyes first looked at His Majesty in front, and then hesitated for a while and turned to Zhang Yunming who was leading the way.

"Don't Lord Song know?"

Zhang Yunming turned around in surprise and asked back.

"Do I... should know?" Song Yuan was very rude when asked by the other party.

"The Qishi Mansion and the imperial court have a cooperative relationship, and the cabinet will not directly participate in the decisions made in the Qishi Mansion."

Li Yu's voice sounded from the side, answering their questions.

As soon as these words were spoken, Song Yuan and Zhang Yunming were silent for a long time.

"Mr. Song, all research projects in Qishi Mansion have their own numbers for confidentiality."

Zhang Yunming explained: "According to the ranking of A, B, C and D, the higher the ranking, the more important it is in the government, and the higher the relevant confidentiality regulations will be."

"Like Yaoyu belongs to No. 17 of Yi, and Ranyu is No. 23 of Yi. Both of these have been sent to the palace, so Lord Song should have some understanding."

"It turns out that Yaoyu and Lanyu are not ranked high, so what is the number seven of the character A research?"

Song Yuan nodded, part of his doubts was solved, not only a lot but more.

"A number seven..."

Zhang Yunming subconsciously looked at His Majesty, who nodded slightly, and then continued: "According to the secret method given by His Majesty, the official name of the No. 7 of the Arc should be called "Real Aura Power Engine Manufacturing"."

"manufacture?"

Song Yuan narrowed his eyes slightly, and was a little surprised by the word.

"Not bad, it's manufacturing."

Zhang Yunming smiled ashamedly and said, "But even if we just make it, in order to refine a qualified engine, the yard has spent a lot of manpower and time to finally understand it thoroughly."

"Is it so difficult? Then I want to see the real thing soon!"

After hearing this, Song Yuan became even more curious.

After a while, the three of them walked through a forest covered with snow, and the front suddenly became clear.

Song Yuan saw a large open space hidden in the dense primeval forest.

On the open space, many houses were built.

The high city walls surrounded the building, and the city walls and gates were patrolled and guarded by Mingwu Army soldiers.

Song Yuan even saw that there were cannons and crossbows on the battlements of the city walls, and his defensive power was no less than that of some county towns.
Chapter completed!