Reinzatz territory to the west of the Wang capital.
There is a large river that flows as if to divide north and south through its Rheinzatz territory.
That's the Rhine.
This Rhine is also a fairly long river, which eventually leads to the Arborest district.
With a large river flowing loosely with water, agriculture seems to flourish around here as well.
The Rheinzatz family could have been so powerful that they became hegemonic aristocrats only because they had warm, agreeable land around here.
That Rhine River will be the final line of defense for the Rhinezats.
For this reason, a place existed in this Rhine for defence.
That's where it's called the Costumble Fortress.
but can this be called a fortress?
It's much bigger than the Parameter Fortress we once attacked.
Fortress Paramere was built using an island in the middle of a lake called Lake Paramere.
Build a fortress on the island and consolidate your protection.
There was also the existence of a peculiar demon living on Lake Paramere, once said to be a difficult fortress to defeat.
but it seems that this costumble fortress is not like using a small isolated island.
It fortifies a triangular piece of land that protruded into the west bank of the Rhine, but it was entirely what could be described as a single city.
Rather, it is a much larger city than the ordinary aristocratic capital.
A huge city surrounded by robust high and thick walls, which can also be replenished from the outside by waterways.
They even say that they are powerful enough to outnumber those aristocratic territories in one of these fortresses.
That was the whole story of this Costumble fortress.
It seems that it's hard to drop a siege fight when it's so big so far.
Because some of the costumble fortresses surrounded by walls have just enough to feed all its inhabitants.
Some farmland, from manufacturing to maintenance of weapons, or shops where you can make and buy what you need for your daily life.
Because everything can be covered in the fortress, he said, so much so that there is a record that he continued to fight for several years even if he was blocked from supplying from the outside.
So they're going to have a defensive system of iron walls that's impossible to turn down supplies and try to attack soldiers.
"There are also a large number of inhabitants, and some soldiers defend this Costumble fortress. This is troublesome."
"But you can't attack me if you do, Ars. The people of the kingdom of Risorte will catch up to you before you let them cage you for years. If that's going to happen, it's still better to ignore this place and cross the river and attack the Reinzatz realm capital, right?
"Maybe that, too. But if I leave you here, I always have to be vigilant behind you. If you think about it, you should slap it right here if you can still take it down."
"Okay. So, what about the operation? As far as I'm concerned, I don't really want to fight on the water, do I? You won't be able to use Valkyrie's legs."
"Right. The water battle I had before was forcefully won with an iceflame sword, but now I'm not going to be able to do that either. What's the matter with them?"
Is the trouble with this Costumble fortress still the presence of the Rhine?
Even though it is possible to fight for a long time without external supply, there has never been a supply.
And that replenishment is done using the Rhine.
Naturally, they have the technology to do it at any time.
This meant that he was quite good at handling ships.
By the time you attach it to the Costumble Fortress and start the attack, this one may also be at a disadvantage in the crossing phase of the ship.
Even after launching an attack on it, we will also need troops alerting us to supply by ship.
There is no such technology in Barca.
The only water battle I once fought was against the Arborest family.
At that time, I forced the ice fairies I called in [Ice Essence Summoning] to freeze the river's water and turn that ice into flames with the Ice Essence Sword to burn down every convoy.
but that is no longer a method that can be taken.
Whatever you say, it's because I can't use [Ice Summon] right now.
If you can't summon the ice sperm, it's impossible to freeze it on a massive scale and the ice flame sword can't work either.
So what do we do?
I thought I could even water attack like the Parameter Fortress, but that sounds a little difficult too.
This time the Costumble Fortress is not on the lake's isolated island, so you won't be able to take it until it's submerged, or Slime, the lake's demon.
I was thinking about how I should cook this Costumble Fortress.
I got one of those contacts with me.
According to that, there's apparently reinforcements coming this way.
Kyle, who beat the Wang Metropolitan Coalition, was set to come to Reinzatz territory.