Taishou Mansion, back house.

The moon stars are scarce, and the colorful black clouds turn into a halo of light, shrouded in the bright moon, and it seems that tomorrow will be a windy day.

The shadowy lights flickered a few figures, with the fluttering of the wind, a burst of fat, a burst of thinness, so that people could not see how many people were hidden in the house, but others could not but mean that Cao Ang could not.

"One by one, one by two, one by two, two by two......"

"Three-seven-twenty-one...... Forty-eight, twenty-four...... Wrong! ”

“…… 4836......"

Cao Ang shook his head, muttered the multiplication formula, and made a "bang", but he was unprepared, and hit the door, and the pain brought him back to his senses.

"Father, Ang'er is back!"

Cao Ang knocked on the door and shouted, this is the rule of their house, the study is heavy and cannot be entered lightly, and only Cao Cao and Mrs. Ding can enter and exit this house freely, even as a son, he is not allowed to enter without the permission of his father's summons.

"Come in~~"

Hearing his father's voice, Cao Ang thought suspiciously, he didn't know what his father called him to come late at night, but he was pressed for time, if he couldn't use this mantra skillfully within three days, then he would be a dead man.

Pushing the door in, the suspicious expression returned to his former calm, looking up at his father sitting on the main seat, and he also knew the first few people, Xun Yu of Wang Zuozhicai, Xi Zhicai of the First Military Division, and Guo Jia, the new ghost talent.

"Aung has seen my father, I have seen all gentlemen!"

Cao Ang performed the gift of a student, although he was Cao Cao's son, he had no official position.

He knew that the people who were not called into the study by his father late at night must be confidants, but there were no Uncle Xiahou tonight, and it seemed that it had nothing to do with the military.

"The eldest prince is polite!"

Xun Yu and a few people owe in their seats one after another, expressing their return salute.

Cao Cao looked at his eldest son with satisfaction, seeing that his face was a little clear, with a little haggard, but his eyes were shining, thinking that it was because of his hard work, his heart softened, waved his hand to let him find a place to sit down, and said: "Ang'er, I called you here for my father tonight, just to ask you where you can study in Ning?" ”

Is it good to study?

This has a deep meaning, I don't know if I am asking what Ning Rongdu has taught? Or are you asking if Ning Rong has taught it well?

Guo Jia sat aside without any image, grabbed the wine gourd with an ordinary face and took a sip, his heart moved slightly, and he quickly glanced at Cao Cao and Cao Ang, and the worry in his eyes betrayed his heart.

Ning Rong is his friend, he compares Ning Rong to his confidant, although Xi Zhicai and Xun Yu are also his friends, but he still feels more unrestrained with Ning Rong, just because the two have the same smell and are both informal people.

One is free and uninformal, and the other is casual and doesn't care.

Cao Angding calmed down, and still replied truthfully: "The child only learned one multiplication formula today, and the master asked him to memorize it within three days, and the rest was not taught, but he just told a story about the legend of the Condor Heroes, which is very novel!" ”

"Multiplication formula?"

"The Legend of the Condor Heroes?"

"Storytelling ......"

Cao Cao, Xi Zhicai, Xun Yu, and Guo Jia glanced at each other, all of them were a little confused, they didn't teach them well, and they were talking about jokes all afternoon?

Guo Jia shook his head at Cao Cao, he couldn't figure out what Ning Rong wanted to do, but according to his casual personality, it was really possible.

Cao Cao frowned with warm anger and said, "Hmph! Mistaken children! Repeat that multiplication mantra! ”

Seeing that his father was angry, Cao Ang was a little inexplicable, hesitated for a moment, and said: "The multiplication formula, it's too awkward, the child only memorizes half of the ......" As he spoke, Cao Ang memorized it directly.

"One by one, one by two, one by two, two by two......"

“……”

"Forty-eight thirty-six, five-eighty-forty...... The children below have not yet remembered! ”

Cao Ang muttered cautiously, raised his head and secretly looked at his father's expression, in the past, he had to be reprimanded for his teaching questions, but today......

Cao Cao didn't care at first, but the more he listened, the more shocked he became...... This is the multiplication formula, isn't this Han Xin's art of counting soldiers! It's really amazing, I didn't expect this Ning Rong to teach such a secret technique, it seems that he blames him by mistake.

His jaw hurt for a while, looking at the beard that was pulled off by himself, Cao Cao came to his senses, and glanced at Xi Zhicai, Xi Zhicai nodded, and said with a solemn expression: "This is Han Xin's technique of ordering troops, and so on, the Marquis of Huaiyin once said that it is not a lie to say that he will have a million soldiers!" ”

"Not bad! Zhiyuan has unique skills and is full of talent, but he is a little wronged just to engage in it! Xun Yu was upset with Ning Rong, in the afternoon he went to the Grain Cao Office, and checked their newly sorted account books, which were clearly organized, intuitive and clear, and there were sources in and out, he believed that as long as he was not a fool, he could understand this account book, and he also thought of others, if this kind of accounting method is used all over the world, I am afraid that those corrupt officials will suffer.

Cao Cao thought about the sample account book handed to him by Xun Yu, and couldn't help nodding, so it seems that this person is proficient in internal affairs, and the post of Changshi can definitely be worthy of this position.

Guo Jia thought of other places, before he thought that Ning Rong was the heir of the military family, but now when he heard this Han Xin's skill of ordering soldiers, he became more and more convinced of his hidden identity.

"Eldest prince, I don't know what the story Zhiyuan is telling? Can you tell us about it? ”

Cao Ang glanced at Guo Jia, secretly thinking to himself, he didn't expect this ghost to like to listen to stories, looking up at his father, Cao Cao nodded at him, he agreed, with this multiplication formula, his anger disappeared, as for the story of tea after dinner, he also regarded it as a boring seasoning for learning.

"The story told by the master, called the legend of the Condor Heroes, it is rumored that in ancient times, the ancestors of the Great Song Dynasty had a yellow robe, a Kuang Central Plains, Dingding Kyushu, however, time flies, the good times are not long, a hundred years later, the emperors of later generations are greedy for pleasure and waste state affairs, and sometimes the northern ethnic minorities rise up, invade the Great Song Dynasty, and establish the Dajin Dynasty, but the Song Dynasty was weak in military affairs at that time, and it was unbearable to fight, so it had to move the capital to Bianliang to avoid its edge. However, it was during this eventful period that the king of Western Xia announced that he would break away from the Song court and establish himself as emperor, so the situation of the Three Kingdoms lasted for hundreds of years......"

Cao Ang recalled Ning Rong's storytelling, and slowly let go of his hands and feet, and told the story in a subdued tone, and the eyes of the four Cao Cao, who only listened, showed their eyes, and their mood also fluctuated with the development of the story.