Yang Kang had imagined countless times the scene when he saw Huang Rong, Huang Rong was his imaginary lifelong enemy, and he had made various plans for this imaginary enemy, in order to nip the danger in the bud.

This kind of planning was often carried out in the first year or two he had just crossed over, when he was a baby, eating and sleeping, and if he didn't think about it, he really didn't know how to pass the long boring time.

It can be said that his baby years in this world relied on fantasy Huang Rong to spend.

There had been various versions of Huang Rong in his mind, so the little girl in front of him had already died countless times in his imagination, and it was a variety of strange ways to die, and now that he finally saw the living one, Yang Kang suddenly felt very fresh.

Just like the magical girl in the two-dimensional world suddenly appeared in the real world, this feeling made him have a moment of trance, especially the little girl's urging just now, as if it was the scene of helping his desk with homework when he was in elementary school.

"What are you doing, come and help. The little girl was dissatisfied.

Yang Kang walked into the pavilion and looked at the paper on the stone table, on which were arithmetic problems, and the little girl was holding a few bamboo sticks in her hand, making a serious thinking appearance.

He knew that those bamboo sticks were called counting chips, which were a kind of counting tools in ancient times, divided into vertical and horizontal, and could be used to calculate the decimal system, but in this era, the abacus had long been popular, and the merchants' accounts were calculated with the abacus, which was very convenient.

This kind of arithmetic was only used by Taoist priests and some who specialized in arithmetic, and Taoist priests used it for divination, and those mathematicians who studied arithmetic preferred this ancient method of notation.

Yang Kang suddenly thought that he and Huang Yaoshi had a common language, Huang Yaoshi was not only superb in martial arts, but also quite proficient in Qimen mathematics, as a graduate of a third-rate university, he at least had a certain advantage in geometry, calculus, a modern thing in the West, but pi could continue to be derived.

Due to the complexity and limitations of ancient Chinese mathematical algorithms, Zu Chongzhi only calculated pi to six decimal places, which is already a remarkable achievement, but Yang Kang can deduce it further, but it is necessary to change to a completely new algorithm.

Maybe I can start a new era of mathematics.

Yang Kang finally found a little sense of superiority as a traverser, but this will be considered later, he currently wants to help Huang Rong do homework, Huang Rong is facing several sets of four operations, which is indeed a little difficult for a four or five-year-old girl, and children of this age are still in kindergarten in the future life.

It is not difficult for him to calculate the result, but it is very difficult to calculate with a calculation chip, he will not use it at all, he is the little prince of the Jin Kingdom, not a bookkeeper.

In this era of heavy scholars and light craftsmen, scientists and craftsmen are at the same level, even big scientists like Zu Chongzhi and Shen Kuo can only be petty officials in ancient times.

"How's that? will you count?" asked the little girl, handing him the bamboo stick in her hand, with a hint of arrogance.

Yang Kang didn't dare to take over the calculation chips, for fear of revealing the stuffing, how to put the calculation chips, how to calculate there are rules, and it is not something that can be fooled around.

He did the math in his mind with the multiplication formula, and then directly reported the answer, and the little girl looked at him with suspicion, she didn't believe that anyone could calculate these problems so quickly, and she began to check them.

As the results came out, the little girl opened her mouth in surprise, looking incredulous, but instantly happy.

"In the future, these topics will be handed over to you to do, don't tell my father. The little girl whispered as she quickly transcribed the answer on the paper.

"Where's your father?" Yang Kang asked.

The ugly daughter-in-law always has to see her in-laws, and she has to face Huang Yaoshi on Peach Blossom Island, which is a hurdle that he can't overcome.

What's more, Huang Yaoshi left him here with confidence, I'm afraid he already knew his identity, and the coffin that converged Qu Lingfeng was placed together with a tombstone, and the handwriting engraved on the tombstone clearly showed the relationship between Yang Kang and Qu Lingfeng.

"Sort out what you brought in the back. The little girl said casually.

Yang Kang brought two things, the same was Qu Lingfeng's body, and the same was the treasure that Qu Lingfeng stole from the palace, and the next moment, he had a bad premonition, those calligraphy and paintings......

"Don't you know that you have to use a painting tube to put up these calligraphy and paintings?" Huang Yaoshi saw Yang Kang coming over, and rebuked bitterly, "These authentic works of famous artists have been ruined like this, and each one is a unique book. ”

That's right, Huang Yaoshi was sorting out the calligraphy and paintings, he put the calligraphy and paintings soaked in water on the stone slab, and he was sad to see each one, and he was even more angry when he saw Yang Kang.

These calligraphy and paintings were originally packed in an iron box by Qu Lingfeng, and Qu Lingfeng sometimes took them out to appreciate, and he was not afraid of the wind and sun in the secret room, so he did not use a bamboo tube to pack them, and Yang Kang directly moved the iron box, not paying attention to the preservation state of the items inside.

He didn't expect to encounter strong winds and waves at sea, and the rain soaked into the iron box and wet the calligraphy and paintings, although it still looked complete, but it was an unforgivable sin for Huang Yaoshi, who pursued perfection.

The devil is in the details.

Yang Kang deeply understands this, and it is useless to do anything at this time, and he can't justify it, so he can only bow his head and admit his mistakes.

"My grandson knew that I was wrong. Yang Kang knelt on the ground and said earnestly.

"Are you a child of Lingfeng?" Hearing this, Huang Yaoshi took his eyes off the calligraphy and painting and glanced at Yang Kang.

"Yes. Yang Kang admitted.

"Tell me how Reiwind died. Huang Yaoshi said coldly.

Looking at Huang Yaoshi's attitude, Yang Kang knew that the bitter drama that he had prepared for a long time could not be staged, Huang Yaoshi was an arrogant person, and this kind of character deeply affected his disciples, whether it was Mei Chaofeng or Qu Lingfeng, they all had this imprint, that is, except for Huang Yaoshi, he didn't look at anyone else.

If Yang Kang wants to be recognized, he must give full play to the arrogance of Peach Blossom Island, do not shed tears, do not give in, and persevere to the end.

He began to tell the story of Qu Lingfeng in a calm tone, the details of which were in his head, which he had reviewed many times when he was in the tavern, and which was now all the more real in the tone of observance and oppression.

After listening, Huang Yaoshi closed his eyes, and the qiē that Yang Kang said flashed in his mind one by one, and he suddenly had a feeling that this qiē was too real, and the real was a little false, as if it was deliberately arranged, and every detail was so precise.

Is he really a child of Lingfeng? What is this child with Quanzhen martial arts teaching coming to Peach Blossom Island for? Is it for the madman in the back mountain?

"I see. Huang Yaoshi opened his eyes, and a trace of essence flashed in his eyes, "Since Lingfeng's last wish is to stay on Peach Blossom Island, you will bury him here, give you seven days to mourn, and you will leave on your own after seven days." ”