When Qian Shengyan woke up the next day, she was still groggy for a while before she remembered something—she had forgotten to ask Yinzhen about the coins that Hongli had given her yesterday.

Fortunately, it seemed that Yinzhen had nothing serious to do today. He was sitting on a soft couch by the window reading a book. When he saw Qian Shengyan come out, he smiled and said, "You've finally gotten up. You've been so lazy."

Qian Shengyan: ...

You're the only animal who can get up early after his mom plays until midnight!

Seeing her puffed-up face, Yinzhen was even happier and said, "I have already sent people to look for the corn and sweet potatoes you mentioned. Oh, and the glass you mentioned before—there's been some progress. I've had it sent to the capital, and we'll be able to see it when we get back."

"Wow, there's glass!" Qian Shengyan was overjoyed!

She was fed up with the opaque window paper, especially in winter when the weather was even slightly overcast and she had to turn on the lights inside, which was really uncomfortable.

"Happy now, huh?" Yinzhen laughed again, reaching out to pull her into his arms. "You, your emotions are always written on your face, you silly thing."

Qian Shengyan wouldn't have it, squirming in his arms. The two talked sweetly for a long time, then shared a long kiss. Afterwards, Qian Shengyan leaned against Yinzhen's chest, panting, but after a moment she felt something was wrong: "What is this? It's so uncomfortable?"

"What?" Yinzhen also felt something hard.

Qian Shengyan took the coins out of her purse and vaguely remembered—oh, she had promised Hongli that she would ask Yinzhen about them.

She had just raised it, and before she could say anything, Yinzhen snatched it away.

He was extremely surprised, looking around in disbelief: "This is..."

“This was secretly given to Hongli by His Majesty yesterday, and Hongli then gave it to me, wanting me to ask you what it is?” Qian Shengyan guessed from Yinzhen’s expression that he should recognize this item.

Upon hearing that this was given to Hongli by the Emperor, Yinzhen was even more surprised: "Given to Hongli? Really?"

Qian Shengyan: ...

Or what? Did she take it herself from the Emperor's waist?

She patiently replied, "Yes, it's true."

“This…” Yinzhen’s eyes flickered with uncertainty. After a moment, he said in a complicated tone, “I have seen this coin on my second brother before.”

Qian Shengyan didn't immediately recognize who her second brother was, and was puzzled as to why Yinzhen had even forgotten how to address himself. But then she remembered that her second brother was Yinreng, the former crown prince!

She was terrified: "Whhhhh what?"

"I've heard Consort Gui mention before that when Father Emperor was a child, he received a jade coin, which he loved very much and wore on his waist many times..." Yinzhen's tone grew heavier as he spoke, and he gradually fell silent.

Qian Shengyan was terrified!

Damn! What does Emperor Kangxi mean by this?!

This coin was first on the body of the real dragon, and later given to the crown prince. Now that the crown prince has been deposed, there is much discussion in the court about establishing a new crown prince. At this time, he gave this thing to Hongli.

…There are precedents in history for establishing a crown prince. Qian Shengyan's heart trembled. She dared not think any further and quickly got up and knelt down, saying, “Your Highness, Hongli is only three years old this year. Even if he is intelligent and lively, so what?”

Yinzhen gripped the coin tightly, remaining silent.

Qian Shengyan closed her eyes and continued to curse Kangxi in her heart, which she considered a troublemaker. She continued, "Even if the Emperor values ​​Hongli, it is because of the Prince."

"Get up," Yinzhen said in a low voice, then chuckled after a moment. "I've lived for over thirty years. No matter how pathetic I am, I'm not comparable to a three-year-old child."

As he spoke, he pulled Qian Shengyan up and laughed again: "Besides, Hongli is my son."

Even if his father is really senile and would rather choose a grandson from a different generation to be established as emperor, he will not suffer any loss.

Hongli is young, and his father is old. If that day really comes... wouldn't it be obvious who will rule the world?

He said meaningfully, "Yanyan, you have given me a fine son."

Qian Shengyan: ...

Why do her legs tremble so much when she hears this?!

What will be the next sentence? Will Yinzhen dislike Hongli because of this?

Qian Shengyan waited anxiously, but unexpectedly, Yinzhen grabbed her chin.

He said, "Yanyan, give me another son."

Qian Shengyan: ...

Another one? Does your Aisin Gioro family have two thrones to inherit?

But she had no say. Another exercise took place early in the morning, which ended with Qian Shengyan crying and begging. By breakfast time, her eyes and nose were still red.

Naturally, the children couldn't see him like this, so only Yinzhen and Qian Shengyan dined together.

Yinzhen seemed to be in a better mood again, and he would tease Qian Shengyan from time to time, which made Qian Shengyan so angry that she wanted to punch the prince!

For the next few days, Yinzhen was very leisurely, only going to the fields every day. Meanwhile, Qian Shengyan succeeded in another attempt.

Chicken manure fertilizer, fermentation complete!

Qian Shengyan looked excitedly at the dark, yet not smelly, fertilizer and was about to scatter it into the field when Yinzhen stopped her. After a moment's thought, he ordered people to mark all the crops into two sections, one to be fertilized and the other not.

Qian Shengyan is truly impressed that she can learn grouped control experiments without a teacher.

A few days later, by the end of July, the rice was fully ripe, with the golden, heavy ears drooping. The potato vines beside them were also somewhat wilted. Yinzhen carefully inspected the planting conditions of all the fields, and finally picked the largest pumpkin. He then took Hongli to the Summer Palace.

The pumpkin was bigger than Hongli's head, and its color was excellent. It was from the same plot of land where Qian Shengyan's fertilizer had been used.

On his journey, Yinzhen not only brought news of the bountiful harvest to Kangxi, but also remembered to tell him the method of fermenting chicken manure into fertilizer.

Thus, following the first empress dowager and emperor in history to play with chicken manure, a second emperor also arrived.

Emperor Kangxi even personally grabbed a handful of fertilizer, nodding and smiling as he looked at it. Qian Shengyan was afraid that he might get excited and take a bite...

Emperor Kangxi walked around and looked at the lush greenery everywhere in the fields. Finally, he spoke and waved his hand—"Start digging!"

Baskets of potatoes were unearthed from the ground, and they were much larger than when Emperor Kangxi had seen them before. The delighted old emperor kept saying "good, good, good." When he saw the pumpkins and rice, he was even more overjoyed.

"Grandpa, look at this potato! It's bigger than my sister's head!" Hongli showed the biggest potato to Kangxi in surprise, and then gestured over Fuerguochun's head. Fuerguochun curiously reached out to reach it: "Giggle, giggle, Guoguo touch."

Hongli gave the large potato to his younger sister and then turned around and joined the ranks of those digging potatoes.

At this time, Yinzhen also received the final news—the yield per mu (unit of land area) for potatoes had been calculated!