Lin's mother stayed in the palace for three days before taking the initiative to resign, fearing that staying in the palace for too long would cause gossip.

Before her departure, Lin Yun ordered a cartload of gifts to be prepared, ranging from fine silks and satins to rare medicinal herbs. Lin's mother, unable to refuse, accepted them, and then repeatedly told her daughter to take care of herself before reluctantly leaving the Forbidden City. The tenderness between mother and daughter was seen by Emperor Yongzheng, deepening his affection for Lin Yun.

That afternoon, after reviewing the memorials, Emperor Yongzheng strolled towards Yanxi Palace. As soon as he stepped through the palace gates, he smelled an enticing aroma, quite different from the usual bland food served in the palace. He raised an eyebrow slightly, signaling to the palace servants not to announce his arrival, and walked directly into the inner hall.

Lin Yun was leaning against a soft couch, with a low table in front of her. On the table were several kinds of golden and shiny food: long, thin strips piled up like a small mountain, chicken wings wrapped in crispy coating neatly arranged, and round pasta dishes filled with meat patties and vegetable leaves. She picked up a strip, dipped it in the sauce in the small dish next to her, and took a satisfied bite, her cheeks puffed out like a cat stealing food.

Emperor Yongzheng found it amusing and coughed lightly. Lin Yun looked up at the sound, and seeing that it was him, her eyes lit up. She said indistinctly, "Your Majesty, please try it, it's freshly fried!"

Yongzheng sat down beside her, picked up a "gold bar" and examined it closely: "What is this?"

"French fries, made with potatoes." Lin Yun smiled and handed over a dipping sauce dish. "They taste even better with this."

Yongzheng imitated her and took a bite. The unique texture of crispy on the outside and soft on the inside made his eyes widen slightly. He then picked up the item called "hamburger" and took a bite. The flavor of meat juice mixed with refreshing vegetable leaves exploded in his mouth, making him even more appetizing than the dishes carefully prepared by the imperial kitchen.

"These...were all your ideas?" Yongzheng put down the food and stared intently at her.

Lin Yun tilted her head and thought for a moment, then casually said, "I guess so. I've had something similar back in my hometown." She picked up a fried chicken wing and held it to his lips. "This is best eaten while it's hot."

Yongzheng took a bite from her hand; the crispy skin wrapped around the tender and juicy chicken made him want to take another bite.

Seeing that he liked it, Lin Yun smiled and her eyes crinkled. She broke off another hamburger and shared half with him. The two of them ate together, taking turns eating, their fingertips occasionally touching. Lin Yun pretended not to notice, but Yongzheng secretly curled the corners of his mouth.

"This potato..." Yongzheng suddenly remembered something, "Is it the kind of tuber that Western missionaries presented? I remember we have it in the palace, but no one knows how to cook it."

Lin Yun, who was drinking juice, nodded upon hearing this: "Yes, potatoes are so easy to grow. They're not picky about the soil; they can grow in dry or sandy land, and the yield is exceptionally high." She suddenly put down her glass, her eyes sparkling, "Oh, and corn! Does Your Majesty know what corn is? It's the bright yellow one, with all the kernels neatly arranged..."

Emperor Yongzheng shook his head: "I have only seen a few of these plants among the tribute items, and I did not pay them any attention."

Lin Yun sat up straight excitedly, but accidentally bumped her stomach and leaned back with a cry of "Ouch!"

Yongzheng quickly helped her up, but she didn't care and grabbed his sleeve, quietly leaning closer to say, "Your Majesty, potatoes and corn are treasures! Without the magic water, one mu of land can yield one or two thousand jin. If they were planted in those barren places in the Northwest, the people wouldn't have to go hungry!"

Yongzheng's pupils contracted: "Is this true?"

"Why would I lie to you?" Lin Yun patted her chest to assure them, then muttered under her breath, "But I have to teach them how to plant them. Sprouted potatoes are poisonous, and corn needs to be pollinated..."

Yongzheng stared intently at her, then suddenly reached out and touched her cheek. Sunlight streamed through the gauze curtains, gilding her skin and making even the finest downy hairs clearly visible.

She had half a French fry in her mouth and was startled by his sudden action. She blinked her eyes, looking innocent and charming.

At that moment, Yongzheng felt that she was a legendary fairy who could turn stones into gold with a mere flick of her finger. The grain shortage problem that had plagued the court for many years was solved by her as easily as if she were chatting casually.

He didn't want to ask her how she knew that his Yun'er was a fairy descended from heaven.

He gently stroked the corner of her lips with his thumb, wiping away a little sauce, and whispered, "Yun'er, do you know how many people your words just now could save?"

Lin Yun felt her ears burning from his serious gaze and whispered, "It's...it's just common sense."

Yongzheng suddenly pulled her into his arms, resting his chin on the top of her head, his voice filled with barely suppressed excitement: "I will order the Grand Minister of Agriculture to do it right away."

He released her, then couldn't help but kiss her forehead. "You should rest well. I'll come see you again later."

Lin Yun tugged at his sleeve: "Your Majesty, please have one more chicken wing before you go, it won't taste good if it gets cold." She looked up at him, her eyes full of anticipation.

Yongzheng's heart softened, and he sat down to finish the rest of the food with her. Lin Yun chattered on about how to make stewed beef with potatoes and corn pancakes, and Yongzheng listened while wiping her hands, as if everything she said was golden rule.

As he was leaving, he glanced back – Lin Yun was holding a cup and sipping her drink, sunlight swirling around her, making her look like a fairy in a painting.

Inside the Hall of Mental Cultivation, Emperor Yongzheng immediately summoned Wang Yueting, the Grand Minister of Agriculture, and instructed him on the planting of potatoes and corn.

Wang Yueting was stunned and repeatedly marveled. Yongzheng stood with his hands behind his back by the window, looking in the direction of Yanxi Palace, and said softly, "This is an auspicious omen bestowed by Heaven. We must do our utmost to implement it."

As night fell, Emperor Yongzheng finished his official duties and the sky was filled with stars.

He arrived at Yanxi Palace under the moonlight and found that Lin Yun was still awake, leaning against the window and munching on a strange round cake.

"Why are you eating again?" Yongzheng asked with a smile as he walked over.

Lin Yun proudly held up the flatbread: "This is pizza! I had the kitchen try making it, Your Majesty, would you like to try it?"

Yongzheng took a bite from her hand, pulling out long strands of cheese, and couldn't help but chuckle: "Just how many strange things are in your head?"

Lin Yun shook her head smugly: "There's plenty more!" She suddenly leaned closer and said mysteriously, "After the baby is born, I'll make ice cream for the Emperor. It's the best way to cool down in the summer."

Yongzheng pinched the tip of her nose: "You..." His tone was full of doting. He looked at the corner of her mouth smeared with sauce and couldn't help but lean down and kiss it.

Lin Yun first widened her eyes, then closed them with a smile, almost dropping the pizza in her hand.