The whole family is obsessed with love? The princess woke them up one after another.

This younger brother has changed.

Jiang Tinghao laughed and blew on the medicine: "Thank you, Your Highness."

The crown prince slightly twitched his lips and watched quietly.

Jiang Tinghao felt it was about time, so he tilted his head back and drank it down.

As soon as the medicine entered his stomach, Jiang Tinghao opened his mouth and let out a silent scream of pain.

This was a statement made without a sound, yet the people inside the room could clearly feel how inhuman the pain he was enduring was.

Because Jiang Tinghao's facial features were distorted and deformed, his face was extremely ferocious and terrifying.

Even the evil spirits in the portrait weren't as frightening as Jiang Tinghao at this moment.

"Imperial Physician!" the Crown Prince cried out urgently.

Several imperial physicians who had been waiting nearby immediately stepped forward to examine Jiang Tinghao.

To be honest, Jiang Tinghao was really obedient and cooperative at this time.

It wasn't because he had the willpower to endure the pain, but rather... he couldn't move.

Pain can make people instinctively roll around, bang their heads on the ground, or cry out in agony... Jiang Tinghao couldn't do any of these!

That bowl of medicine not only brought him excruciating pain far beyond what he could bear, but more importantly, it left him completely powerless.

He only has one feeling right now—pain.

It hurts everywhere.

Whether it's the skin, bones, or internal organs.

What's most infuriating is that each of these causes pain in its own way.

He felt that if this medicine were used for interrogation, it would be extremely effective; no ordinary person would be so stubborn as to refuse to confess!

After the imperial physicians finished their examinations, they exchanged glances and saw the same helplessness in each other's eyes.

"Your Majesty, we are incompetent." The imperial physicians knelt down and begged for forgiveness.

The king of Northern Dian gritted his teeth and asked, "Isn't there any way to alleviate this?"

The imperial physician replied tremblingly, "Your Majesty, this prescription is extremely delicate. If we administer the medicine rashly and disrupt the original balance of its effects, I'm afraid..."

The imperial physician did not finish his sentence, but the king of Northern Dian understood.

If things go wrong, Prince Ning could be poisoned to death.

"Go and summon Qi Zhiyu to the palace!" the King of Northern Dian roared angrily.

After a while, the King of Northern Dian looked at his returning attendant, his face as black as the bottom of a pot: "Where is Qi Zhiyu?"

The attendant trembled with fear: "Your Majesty, the Princess..."

"What princess?" the King of Northern Dian roared. "She is the Princess Consort of Ning!"

She's already married to his son, yet she still calls him "princess"?

What is he from Northern Yunnan?

The attendant quickly corrected himself: "Princess Ning said that Prince Ning's condition is normal, and he will be fine in less than a quarter of an hour."

Although the king of Northern Dian was displeased, he knew that the pain would disappear, so he was somewhat relieved.

"Child, hold on a little longer." The King of Northern Dian comforted Jiang Tinghao, who was trembling slightly and unable to speak.

His youngest son has been resilient and hardworking since he was a child.

He believed that the child could pull through.

The crown prince was not so optimistic, because he saw that the servant was still kneeling on the ground, his whole body tense.

"What else did Princess Ning say?" the Crown Prince pressed.

His shout drew the attention of the King of Northern Dian, and the attendants became even more frightened.

The servant kowtowed heavily to the ground, not daring to lift his head, and quickly said, "The pain will recur after a quarter of an hour, and the duration of the attack will increase by another quarter of an hour."

"The pain will subside after the second and third doses of the medicine, and after another twelve hours."

"The medicine must be taken at the same time each time."

"What?!" the King of Northern Dian roared angrily. "Guards, seize Qi Zhiyu!"

He wants to skin Qi Zhiyu alive!

He wanted to grab Qi Zhiyu's head and throw it at Emperor Kangwu's face!

How dare Princess Da Rui humiliate her son like this?

"Father, please don't act rashly!" the Crown Prince urged hastily. "A hasty attack on Da Rui would not be very successful for Northern Dian."

"Not only will we suffer heavy losses, but it will also make Prince Ning a target of criticism."

The Crown Prince knew all too well what his father, the Emperor, cared about.

His use of the Prince of Ning as a pretext was more effective than any other form of persuasion.

As expected, the king of Northern Dian calmed down a bit after hearing this.

"Are we just going to let Qi Zhiyu run rampant like this?" The King of Beidian was not about to swallow this insult.

The Crown Prince said in a deep voice, "If Father trusts me, I can go to the Ning Prince's residence and ask about the Ning Princess."

"Your Highness, what are you saying?" the King of Northern Dian sneered. "You are the Crown Prince I personally groomed; how could I not trust you?"

"Go."

If the King of Northern Dian had said these words before, the Crown Prince would naturally have felt proud and honored, and also deeply admired his father.

Now, listening to it again... he only feels incredibly ironic.

"Yes." The crown prince bowed respectfully and withdrew.

The Crown Prince met Qi Zhiyu, but not in the main hall of the Ning Prince's residence, but in the flower hall of Qi Zhiyu's courtyard.

The reason was—she was too lazy to walk that far.

The Crown Prince looked at Qi Zhiyu helplessly: "Princess Ning, it is completely against the rules to allow men from outside the family into the inner courtyard."

Qi Zhiyu said with a laugh, "In Northern Yunnan, aside from needing to report before entering your father's palace, where else does the Crown Prince need to follow the rules?"

"Is it that people don't trust your character, or that your royal family lacks dignity?"

The Crown Prince choked: "Princess Ning, has no one in Da Rui ever said you were particularly eloquent?"

"No one in Da Rui dares to talk about me," Qi Zhiyu said with a smile. "Those who did talk about me, I never saw again."

"They're either dead or exiled."

The Crown Prince closed his eyes. What on earth did Jiang Tinghao marry?

How could Jiang Tinghao have the audacity to propose to someone like that?

Moreover, it was Jiang Tinghao who devised the plan to marry her.

Now he even suspects that Qi Zhiyu might have been behind the scenes in making Jiang Tinghao's scheme succeed.

She married into the Yunnan province so that she could legitimately go to northern Yunnan.

"Why didn't you present the prescription you gave to Prince Ning in the first place?" the Crown Prince questioned. "Shouldn't you two be supporting each other?"

"Sigh..." Qi Zhiyu sighed, "That prescription can indeed make him recover quickly, but... as you can see, the price is too high."

"On one hand, this is good for him, but on the other hand, it's not good."

"So I couldn't make up my mind, and in the end I could only let him choose for himself."

The Crown Prince frowned: "Princess Ning, you're trying to exploit a loophole!"

"Your Highness, what are you saying?" Qi Zhiyu said with a light laugh, "Nothing in this world is perfect."

"Even if I'm doing this for the good of my partner, I can't make decisions for him, can I?"

"But in other areas, I will definitely do my best to help him."

The crown prince's gaze sharpened: "For example?"

"For example, to win over the hearts of the people, expand his power, and..." With each word Qi Zhiyu spoke, the Crown Prince's face darkened a little more. After she casually revealed the ultimate goal, the Crown Prince's face turned completely ashen.

"To become the crown prince and ascend the throne."