Yun Yin lowered his head, his face pressed against Wushuang's, their breaths intertwined.

"If you can satisfy my father and the people of the world, I may let you become the only Crown Princess, the only... Queen." Yun Yin said in a low voice.

Wushuang's red lips gently brushed the corner of his lips, and she whispered in his ear, "Do you want cowpox, which can prevent and treat smallpox?"

Yun Yin's eyes suddenly widened. He leaned back slightly and looked at the seemingly heartless woman in his arms.

"Preventing smallpox?"

Wushuang smiled and said, "It can prevent smallpox. Once you use the cowpox vaccine, you won't get smallpox again."

"Your Highness, are you interested?"

Yun Yin nodded, "Of course."

This is a good thing that can prevent and treat smallpox.

In ancient times, smallpox could be a terminal illness. Those who could resist smallpox would not get it again, but those who could not would die.

Because smallpox is highly contagious, if one person gets smallpox, many people in the same area may also be infected with smallpox.

Wushuang took out a stack of papers from a drawer in the carriage and handed it to Yun Yin. He looked at him with a smile and said, "Your Highness, please remember that it was I who came up with the cowpox method for preventing and treating smallpox..."

"So, do I have the qualifications to ask His Highness not to take a concubine?"

Yun Yin nodded, "I promise you, I will definitely not take a concubine."

"As long as you don't want me to, I don't have to take a concubine." Yun Yin said seriously.

Wushuang nodded. "In addition to cowpox, which is used to prevent and treat smallpox, there are three other treatments for smallpox."

Smallpox can be prevented and, of course, treated.

Wushuang has lived for a long time and has studied alchemy for a long time, so he has also developed a prescription for smallpox.

Yun Yin looked at her with surprise and said, "Don't worry, with this thing, my father will not object to me refusing to take a concubine."

Wushuang nodded, "I hope Your Highness can keep his word, otherwise I won't give you any good things."

"Also, don't think about squeezing me out of my worth and then letting me down." Wushuang poked his heart with his index finger and said, "If one day you break your promise, I'll have a way to destroy you along with me."

"Your Highness...you must remember this..." Wushuang whispered in his ear, causing Yun Yin's heart to beat violently.

"I... remember it." Yun Yin said in a hoarse voice.

After receiving his assurance, Wushuang stepped back, straightened his clothes and said, "Well, Your Highness may leave now."

"Your Highness's news is waiting for your humble opinion." Wushuang looked at him with a decent smile. She looked nothing like the enchanting and charming look she had just now.

Yun Yin looked at her, then at the stack of papers in his hand, and smiled, "I'll take you back. Miss Lin, are you willing to let me ride in the same carriage with you?"

Wushuang tilted his head and looked at him, and when he got a little nervous, he nodded and said, "Okay."

Wushuang looked at his nervous expression as he held the prescription for smallpox prevention and treatment, and took out an empty box and handed it to him.

"Put it on."

Of course, the box Wushuang took out was not particularly expensive, but it was not a very cheap box either. It was worthy of her status, but it was not a particularly valuable box.

Yun Yin put the prescription away, then kept it close to his body. He looked at Wushuang and talked to her softly about other things.

For example, he asked about the situation in the East Palace and Wushuang's preferences.

What she likes and dislikes, and how she wants the wedding day to be like, how she wants things to be like after the wedding, and so on.

She also wanted to know what the place she wanted to live in would be like after she married into the Eastern Palace, and what her requirements were.

The two chatted all the way back to the Taifu Mansion. Yun Yin got off the carriage and sent her home before riding away.

After Wushuang entered the house and Yun Yin left, the capital city was in an uproar.

His Royal Highness the Crown Prince and the future Crown Princess ride in the same carriage!

His Royal Highness the Crown Prince and the future Crown Princess are traveling together!

His Royal Highness the Crown Prince sends the future Crown Princess home!

His Royal Highness the Crown Prince and the future Crown Princess are in love with each other!

"Bang--"

"How is this possible!" Li Mengxue smashed the cups and bowls in anger, not even looking at the mess on the ground, her expression distorted with anger.

"How could His Royal Highness the Crown Prince like that woman Lin Wushuang? What right does she have?" Li Mengxue said gritting her teeth.

"Miss...Miss, please calm down..." Li Mengxue's maid was scared when she saw her so angry, but she still mustered up the courage to comfort her.

"Miss, don't be angry. Maybe His Highness is just giving her some face." The maid coaxed Li Mengxue, but in fact she was also saying this to herself.

"After all, Miss Lin is the Crown Princess, whom Your Majesty arranged to marry. Your Highness the Crown Prince was raised by Your Majesty. He must be so close to Miss Lin, whom Your Majesty arranged to marry, out of respect for Your Majesty."

"Miss, this must be His Highness giving His Majesty face, not because he likes the Lin family girl..."

"Don't worry, young lady. His Highness will definitely find out your good qualities. That girl from the Lin family cannot compare to you in any way..." The maidservant coaxed her master with witty words, hoping that she would stop being angry.

If her girl gets really angry, innocent people will be harmed. If the maids serving her make any mistakes by accident, they may be severely beaten.

The maid really didn't want to be beaten, so she could only comfort her girl.

Moreover, the maid felt that what she said must be right. His Royal Highness the Crown Prince and that girl from the Lin family had no connection at all.

The reason why they traveled together this time was definitely because of His Majesty's face. His Royal Highness the Crown Prince would condescend and humble himself to be insincere with Miss Lin.

Li Mengxue was so angry that she gasped for breath. After being comforted by the maid, she gradually calmed down and said, "Yes, that must be the case."

"His Royal Highness the Crown Prince is a gentleman, a man with a strong sense of responsibility and filial piety. He must be so close to Lin Wushuang because of the marriage granted by His Majesty and the face of His Majesty and the Grand Tutor..."

"I am the only one who is worthy of Ding! Only me!" Li Mengxue gritted her teeth and hypnotized herself.

The maid comforted her girl, then signaled to the other maids to quickly clean up the broken cups and plates. If they hurt her girl, they would definitely not escape punishment.

"Miss, I heard that His Royal Highness the Crown Prince went out of the city today. He must have gone to see Lord Cheng'en."

"That Lin family girl hasn't even been engaged to the Crown Prince yet, yet she's returned with His Highness..."

"Is she shameless enough to block His Highness?" the maid guessed.

Li Mengxue was a little angry and disdainful when she heard this, "Is Lin Wushuang really that impatient? She just got the marriage granted and she can't wait to get close to him?"

"How can Lin Wushuang, with such dissolute behavior, be qualified to be the Crown Princess?" Li Mengxue said contemptuously.

"Yes, yes, the Lin family's daughter is just unbearable..." the maid echoed her.

Li Mengxue did not blame the maid for daring to make up such stories about the eldest daughter of the Grand Tutor's Mansion. She felt that what the maid said was exactly what she wanted.

That's what she felt.