My sister and I moved around the world until I unified the continent to protect my sister.

Leaving the sweeping and capturing of the defeated soldiers of the Royal Sidal Army to the armies of the surrounding lords, the main 20,000 of the Grand Duke's army was approaching the outskirts of the King's capital.

It is time for the wind to feel cold in the north, on October 7th.

"... that's terrible"

Yes, Mr. Rhina was the one who snapped.

The outskirts of King's Capital, overlooking a reconnaissance balloon, have been abandoned on one side.

The cluttered but vibrant city is now without a trace.

Both the inn where I met Lynne and the suburban branch of King Guild Capital, the adventurer who was introduced to Mr. Rhina. It had become a burning field, so much so that I didn't even know where it was.

I heard it as information, but I'm actually quite shocked to see it.

Lynne's ex-husband...... I don't care, are the Ellis from Adventurer Guild safe?

Before the Idra Imperial Army attacked me, I conveyed the information at critical times, but I can't help but pray that you were using those few moments effectively.

Moving his gaze, fortunately, there seemed to be relatively little damage within the city walls, some of them burned, but both the house we lived in, the Listella Chamber of Commerce store and the pharmacy that sold the medicine for the ten-day fever that Eina practically partitioned seemed safe in the distance.

But I don't know what's going on inside.

They say there was a pretty terrible looting, and the information is that the good buildings have been taken over by the house-lined Idra Imperial Army to become soldiers' quarters, etc.

As we stare at Wang Du with a dark expression, only Aina realizes that she is moving her gaze in the wrong direction.

"... you don't see the enemy cavalry"

- Yes, the Infantry 50,000, the main unit of the Idra Imperial Army, is in the old King's capital, but the Cavalry 30,000 should be outside the King's capital.

They say the cavalry of the Idra Imperial Army is the strongest and most powerful in the continent, with great mobility and aggression. In a way, he's a much more vigilant opponent than the main unit.

The Grand Duke also thinks with a difficult look.

"The original plan was to strike from the north where we were attacking the Royal Cydal Army from the south and destroy the place of chaos together, but it was too soon to break the Royal Cydal Army..."

"Yes, if we knew we and the Royal Siddhar Army were fighting, the Idra Imperial Army would have turned its cavalry against the Royal Siddhar Army, which would have recognized it as a greater threat. There must have been plenty of time to get the cavalry back because the information that we were going to wake up was so dense... I guess there was an insult (ah, etc.) that we didn't have enough force to break the detachment of the Royal Sidal Army to approach the main unit"

"I'm not angry about that, but the question is where the enemy cavalry is anyway. According to reports by those who make them lurk in the Wang Dynasty, only the infantry is inside the city walls. I'm pretty sure he's out there, but we can't even attack the castle without knowing where he is."

The Grand Duke's words also give the surrounding generals and staff a difficult look.

Somewhat, the Chief of Staff opened his mouth.

"Destruction is imperative if he is attacked on the back of his stomach (Fukuya-san) during a siege battle, or is sandwiched with infantry in the King's City. or, there is no prospect of being able to attack Wang Du in the short term. I was wondering if we should even think about pulling this off once..."

No one disputed the Chief of Staff's statement, and Mr. Eina opened her mouth where a painful silence had begun to drift.

"As a story in the first place, once we pull it off, can we respond to a cavalry attack of 30,000? Can't we fight without always taking control of the vanguard (spiral) and taking the lead?

"It's..."

... Something made the silence even heavier.

It's been going as well as I've ever been scared, but it's hard to come here and ask.

If you go up to high altitude with balloons, you can defeat a wide range, but it's dozens of kilometers at most, even if it's wide. And only during the day.

Given the speed of the cavalry, the respite from enemy discovery is several hours. There's nothing I can do if I get attacked at night.

Unknown cavalry, this is a troublesome issue...

And, I notice Eina staring this way.

This is it. Obviously, he's asking me if I have any ideas.

I think you're being unscrupulous, but I'm sure you'll have trouble losing, even if it's me, but only if you settle late. So I'm going to do everything I can to trace my memory.

... how to defeat the cavalry... Nagashino's match? But no, there's no cannon.

I'll dig through all the knowledge, but on top of my junior high school level, when I think about it, I don't know much about cavalry.

It is difficult to ask Eina in this situation, so I will try to ask Reina in a low voice.

Mr. Rhina is familiar with horses, and she must have more tactical knowledge than I do.

"Mr. Rhina, what is the weakness of the cavalry?

"Is that a weakness? Right... will you seal your legs? If you take away your mobility and assault, your cavalry is no different than just a lightweight infantry. I remember there was an example of a war that we destroyed by luring them into the wetlands."

"I see, thank you"

Feet... Horses do seem weak in the wetlands, but where we are now is a plain on one side, and we don't see any wetlands.

A level where a thin river is flowing but doesn't even rely on it for moat use. The northern part of the kingdom is dry this season, and we can't expect heavy rain.

..................... No, I don't. But in Nagashiko's match, did the horse fence (Bubble Saku) work at the same time as the cannon?

Horse fence...... Considering that the tactics adopted by the Royal Cydal Army to intercept the cavalry of the Idra Imperial Army were the other way around, it may not be a very good idea in this world.

It's a little different from the fence, but there are so many spears that the Royal Cydal Army has thrown away as it hits the breakdown, so if we diagonally bury that one on the ground, we can prevent some cavalry assault?

Or if you're going to hit a sturdy pile on the ground and rope it to a height where your horse's leg gets caught, I think you can cover a wide range in a short time. Luckily, this army has a lot of ropes available for the convenience of running balloons.

There are knee (knee) length grasses bush around and there is a wide sight to remember when me and my sister were flown into this world, but I also feel the rope would be less noticeable if it fits this grass length.

The river is flowing, albeit not too big, and I think it's possible that using the terrain successfully could create a defensive position in a short time.

How useful it is and how it works to make it.

I don't know how to get there, so let's leave it to experts and smart people.

All right.

I hide in the shadow of Mr. Rhina and run the operation over the paper, asking Mr. Rhina to give it to him.

Well, what about Eina's rating......

7 October 423 Continental Calendar

2.2% Continental Unity Progress at the moment (Parklen Mine Owned - 312,127 Elves 250,000 evacuated to the forest) (967 Viscount Parklen - Elf villages - 132,318 inhabitants)

* The status of the mine and Viscount Parklen territory (Great Forest) is unknown, so no update for the moment

28% recovery of the former Kingdom of Markham (southwest Grand Duke Faros and surrounding aristocratic territories + destruction of the Royal Sidal army + expanding liberated areas mainly in the south + main force reaches the southern part of the former King's capital)

Asset holdings 60,548.41 million

[]/(n, vs) distribution/distribution/(P)/

Lynne (Elf Archer)

Linea (Class B Adventurer)

Lena (Elf's Textile Artisan)

Ceres (Elf's Woodworker)

Listella (hired chairman of the Chamber of Commerce)

Lucrea (Elf's Pharmacist)

Nina (Parklen Mine Operator)