Qin Su's eyes lit up instantly; this was a good thing. She reached out to Luo Zhi, "Sell it to me."

Luo Zhi pouted, "I won't buy it. You can only let my sister use it for free, but you have to take me with you."

Qin Su: "..."

She was extremely helpless. "It's very dangerous."

"I'm a master of deception and poison. Sister, you should have some faith in me."

After much persuasion, Qin Su had no choice but to bring the person along, but told her not to wear those jingling accessories because they were going to assassinate someone.

Once they reached the border of Da'an, they had to switch to water transport. Fortunately, Qin Su and his group had travel permits, so they had no problem traveling within Da'an. Once on the ship, they would have to pay for the journey to the other sea country.

They weren't on official ships, but on merchant ships. Although they paid a high price, it was good that they could get away with it.

To facilitate their actions, Qin Su and Luo Zhi both dressed in men's clothing and wore veils, which also concealed their identities to the greatest extent possible.

It took them five days just to travel by water, and they didn't arrive at the port until noon on the fifth day. This was also the territory of the Yuehai Kingdom.

This was Qin Su's first time visiting the Yuehai Kingdom, but that didn't matter; there were plenty of ways to get to the capital.

As mentioned before, killing just one prince is meaningless; we need to see which prince is the best and support him.

First of all... there must be internal strife.

Seven or eight days later, a group of people infiltrated the capital. Many in the Yuehai Kingdom were warlike, and it would be easy to instigate internal strife, given the ongoing struggle for succession. Furthermore, the old emperor was incompetent and senile.

Now all we need to do is kill the Third Prince, frame the other princes, and let them fight each other first.

Killing someone was easy for Qin Su, but how to infiltrate the prince's residence was the problem.

Moreover, I've heard that this third prince is also highly skilled in martial arts, and he has many experts by his side. I need to think of a way to deal with him.

Since we can't infiltrate, let's wait for him to come out.

Qin Su and Lu Yue squatted together until three days later, when they heard that Li Yong'en was going to a temple to offer incense. Qin Su seized the opportunity and went there.

Li Yong'en indeed had many skilled fighters around him; if it weren't for the poison provided by Luo Zhi, this man wouldn't have been able to be killed.

The death of Li Yong'en, the most likely successor to the throne of Yuehai Kingdom, caused a great stir. The capital of Yuehai Kingdom seemed poised for a major upheaval.

Qin Su and the others continued to lie low and did not leave, during which time she recuperated from her injuries. There was no other way; Li Yong'en was simply too difficult to kill.

During this time, Qin Su also selected a prince, though his life was worse than that of a palace servant. She signed a treaty with him, stipulating that as long as Da'an supported him, neither side would wage war for a hundred years.

Things went very smoothly. In just one month, the royal family of Yuehai Kingdom was almost entirely wiped out. Qin Su seized this opportunity to have Lu Chuyue become a strategist for the young prince, offering him advice and strategies.

Also for the sake of safety during the regular month, Qin Su did not leave.

Two more months passed, time flew by, but it seemed to pass very slowly in the Yuehai Kingdom.

The newly developed poison was still used on the old emperor. And it was even delivered by the young prince himself.

On the day the young prince ascended the throne, Lu Jun was temporarily left behind, and Qin Su and the others retreated.

It sounds simple to solve this problem, but in reality, it is fraught with difficulties. Qin Su almost died in Yuehai Kingdom several times, but he always managed to escape danger and escape with good fortune.

Because of this, Qin Su couldn't even make it to Yuan Yuan's 100-day celebration. She arrived in a hurry and could only give Yuan Yuan a birthday party.

From then on, there were fewer wars on the border of Da'an, and at least a century of peace.

Yu Shuo's memories gradually returned under Luo Zhi's care, but what made Qin Su a little awkward was that Tuoba Yaya from Quegu had indeed gotten together with her younger brother, getting engaged in one year and married in three years.

They move faster than anyone else.

That's all good, but there's one more thing that Qin Su finds strange: Luo Zhi and Tuoba Yan have actually become a pair of bickering lovers.

They didn't get married, but even a blind man could sense that something was off between them.

The only person Qin Su couldn't let go of was Lian Tao, who seemed to have never had anyone she liked.

However, these were major issues for Qin Su, but minor issues for the rest of the country. What the people valued most was the distribution of crop seeds to increase yields so that they could be planted on a large scale.

Da'an's wealth will certainly not stop here.

【over】