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Tinto Flavour #27 - 13th of June 2025 - Japan, Nanbokucho, Sengoku

Hello and welcome once more to another edition of Tinto Flavour. Today we will continue the Japanese theme by taking a look at the flavor of Japan and the Japanese clans, as well as the situations of the Nanbokuchō and Sengoku Jidai.

After a long period of peace under the Kamakura Shogunate, the islands of Japan were plunged again into war during the Mongol invasions. That debilitated the authority of the Shōgun to the point that Yamato Go-Daigo Tennō was able to wrestle control of the country away from him. However, his intentions of restoring imperial rule were not to come to fruition, as his former ally Shōgun Ashikaga Takauji established a new Japanese Shogunate.

Now Shōgun Ashikaga Takauji rules over the country after Go-Daigo Tennō fled the capital and established himself in Yoshino. The struggle between the central government and the fleeing Emperor is far from over.

Japan.png

These are the estates of Japan:
Japan Estates.png

And it has this unique reform:
Shogunate Reform.png

While the other clans and the imperial courts have these other ones:
Clan Reform.png

Imperial Family.png

Japanese countries have some common advances, and some of the individual clans have also some unique ones. Some examples:
Bushido.png

Head Hunting.png

Codified Bushido.png


Some unique ones (try to guess which clan they are for):
Clans of Tosa.png

Izumi Sea.png

Unlikely Alliances.png

Uninspiring clan.png

Furinkazan.png

Let’s talk now about how the clans behave. Let me start by saying that our recommended country to play in Japan generally is the country of Japan itself, as the clans, being building-based countries, play quite a bit different than regular tags, and thus are rather suited to experienced players that want to try a different and more challenging game style.

That being said, let’s look at how they work. Being building-based countries, they are of course dependent on their buildings. Here is some of them:
Shoen.png

Yamashiro.png


The next ones are exclusive for the imperial court countries and the non-imperial clans, respectively:
Gosho.png

Yakata.png

And another important building that cannot be built manually but it will instead be built automatically when a clan is assigned to be Shugo of a province (see yesterday’s Tinto Talks for that mechanic):
Kokufu.png

As you can see, both their economy and their troops will depend directly on the buildings that they own, so their strategy is to expand their presence by building more of those buildings and also taking the ones owned by other clans in war.

Now that we mention war, it’s time to talk about the two civil war situations in the game. Let’s start with the Nanbokuchō Jidai, a situation that starts just at the beginning of the game. Initially, all countries all assigned to support either the northern or the southern court, according to their historical alliances, but when the situation starts, countries will get the following event:
Nanbokuchou start event.png

With this, the clans will be able to choose to switch loyalties, or even declare neutrality, although for obvious reasons neither the two courts nor the shogunate are able to change their allegiances. The whole country will thus be divided into sides:
Nanbokuchou panel.png

Nanbokuchou map.png

Even after the situation has started, countries can choose to change their loyalty, not only via the actions in the situation panel but also through events that will fire during the situation allowing for that. Besides that, there will also be other events firing with options of getting casus belli or even declaring wars, making it so that chaos is ensured.

One important thing to note is that as long as the Nanbokuchō Jidai situation is active, countries will not be able to declare war on others supporting the same side as them. If you want to attack another clan that is supporting the same side as you, you will have to do it after the situation is resolved (or choose to change your loyalty, of course).

To end the situation, one of the two courts must be forced to disappear, through a special peace treaty “Force Imperial Abdication”.

So, we just had a civil war, what about a second one? Whether the Nanbokuchō Jidai situation resolves successfully or not, an even bigger civil war will still be looming. The Sengoku Jidai situation can happen after 1400 if there is no Shōgun, or if the Shōgun is in a weak position (low legitimacy or stability, or with rebellion problems), or if there are more than 6 wars currently active among the clans. As such, a strong shogunate will be able to avoid falling into it if they manage to keep their children in check.

Once it starts, the stronger and bigger clans will automatically transform into landed Daimyō, with the rest receiving an event with the option to also become landed, at the cost of opinion with the shogunate.
Sengoku Event Start.png

Becoming landed will have many consequences. For once, all locations in the shogunate in which they have a presence with their buildings will become owned by them, and they will receive a new government reform replacing the “Japanese Clan” one:
Daimyo Reform.png

Even if a country does not choose to become landed with this event, they may have the option to do so in the future, both via further events that can fire during the situation, and also directly through the action “Proclaim Independence” in the situation panel:
Sengoku Panel.png

The actions available in the panel are slightly different for the Shōgun, giving extra tools to control the many clans, both the ones that have been already landed and those that are still as building-based countries:
Sengoku Shogun Actions.png


The objective of the Shōgun will thus be to curb the autonomy of the clans, while the objective of any clan would be to gain sufficient power to either become the Shōgun themselves or to destroy the shogunate entirely. The situation will end when there is only a single country in the shogunate (with the exception of allowing for the presence of a building-based emperor), or when the Shōgun has managed to reduce all other clans to just a single location building-based country.

As with the Nanbokuchō Jidai, there will be some events firing during the situation, giving the countries options to gain casus belli, declare wars, etc, and there are also some event chains of interaction between the Shōgun and the clans when the former uses the action to “Summon to Court”.

And that is all for today. With almost 150 countries in the Shogunate, there is much more to unpack in the game, but this is as far as we can show here.

As an extra treat, because many of you asked about it, here's an updated view of the terrain map for Japan, with an especial effect of cherry blossoms during spring:
Japan Terrain.png


Next week @Pavía will be back, so I'll leave you in his care (I still don't know what will be the schedule for next week, sorry).

And remember to Wishlist Europa Universalis V now!
 
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Sorry I don't think I undrerstand that answer, the map colour of what country exactly, Ashikaga or Japan(the formable)? You mean that if the Shimazu Clan becomes landed and conquer all the locations that Ashikaga owns and becomes the Shogun as well, the country(the formable of Japan) will change its name to Shimazu Shogunate and will keep the same red colour that Ashikaga had or is it the opposite and it will become purple like Shimazu?
If it's the first one then I hope you can change it to the second one as it would make for some good visual flavour
The country winning the Sengoku and unifying Japan will keep its own color (and also name and flag).
 
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1749825042699.png

With the new portrait frames, the new sepia overlay for the event picture art feels unnecessary. Could it be removed so we can fully appreciate the good art on display?
 
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So after you win Sengoku-jidai situation there is only unified Shogunate with no Daimyo vassals? Is such outcome really historical? Domains preserved a very large autonomy up until Meji restoration.


When you play as a Shogun is there any reason other than RP to grant clans governorship over provinces?
You grant or remove governorship to keep them in check.
 
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Can building-based countries - like daimyo - return if they're defeated? Like how in EU4, you can force an enemy to release countries, or separatist rebels can enforce demands?
 
Subject: Question & Suggestion on the "Kokufu" Building Name

Dear Paradox Development Studio,

I'm always excited to read the developer diaries. I have one more question and a suggestion regarding a building name in the Japan systems.

In Developer Diary #27, it was mentioned that an important building called "Kokufu" will be automatically built when a clan is assigned as the Shugo of a province. I find this system of representing the administrative center of the province very interesting.

To further enhance the historical accuracy, I would like to propose an alternative name for this building.

The "Kokufu" was originally the provincial capital under the ancient Ritsuryō system, and by the Muromachi period, many of its functions had become largely ceremonial or defunct. In contrast, the Shugo of this era established their own administrative headquarters called the "Shugosho" (守護所) to govern their assigned provinces. It was through this "Shugosho" that the Shugo gradually absorbed the functions of the old "Kokufu" and established their unified control over a province.

In essence, the true administrative and military center of a province during the Muromachi period was not the old "Kokufu," but the new "Shugosho" established by the Shugo.

Based on this historical context, I would like to make the following proposal:

  • Proposal & Question: Would it be possible to name the building that is automatically constructed upon a Shugo's appointment "Shugosho"instead of "Kokufu"? This would more accurately reflect the reality of the period.
    • Gameplay Benefits:
      • This would allow players to feel more specifically that they have "established a base of power as a Shugo," rather than just gaining a generic "provincial capital."
      • As a more advanced idea, perhaps at the start of the game, each province could have an old, low-level "Kokufu" building. When a Shugo is appointed, a new, high-level "Shugosho" building would be constructed, which would then overwrite or absorb the functions (like tax income) of the old "Kokufu," thus simulating the historical process of the Shugo taking over the provincial government's functions.
While this might seem like a minor naming change, I believe it would be highly effective in pursuing a more realistic representation of the power structure of the Muromachi period. Thank you for your consideration.

Sincerely,itoma_aikon
 
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Kokufu for Shugo Daimyo instead of Kokushi? That sound a bit inaccurate. Will we have Kokushi in the game anyway?
Kokushi is the official (so the person). The actual office building was called Kokuchō (国庁), although as the administration of the Kokufu as a whole included more buildings beside the Kokuchō, Kokufu was chosen to represent the general provincial governorship.
 
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The country winning the Sengoku and unifying Japan will keep its own color (and also name and flag).
Is this true in all cases? I feel there should be an option to get at least the color of Japan. I would absolutely hate if my imperial restoration games forced me to play with a yellow Japan just because that’s what the southern court starts with.

Edit: actually I’m pretty sure I’d hate all games that don’t have an Ashikaga victory. Can this be a game rule? Japan as any color but red just feels wrong.
 
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Kokushi is the official (so the person). The actual office building was called Kokuchō (国庁), although as the administration of the Kokufu as a whole included more buildings beside the Kokuchō, Kokufu was chosen to represent the general provincial governorship.
Sorry for misexpression. What I meant is that the head of Kokufu should be Kokushi who was appointed by the emperor instead of Shugo Daimyo. But it's definitely OK to generalize it. The question remains: Will we have Kokushi in the game especially if we restore the authority of the emperor to replace Daimyos? I think that would be cool.
 
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If the owner of the location has not gotten rid of the clan there before it can be landed, then it's their fault.
Even if it's their fault, a CB could be good to have, I don't think it'd be hard to implement and would make sense imo.
 
Subject: Question & Suggestion on the "Kokufu" Building Name

Dear Paradox Development Studio,

I'm always excited to read the developer diaries. I have one more question and a suggestion regarding a building name in the Japan systems.

In Developer Diary #24, it was mentioned that an important building called "Kokufu" will be automatically built when a clan is assigned as the Shugo of a province. I find this system of representing the administrative center of the province very interesting.

To further enhance the historical accuracy, I would like to propose an alternative name for this building.

The "Kokufu" was originally the provincial capital under the ancient Ritsuryō system, and by the Muromachi period, many of its functions had become largely ceremonial or defunct. In contrast, the Shugo of this era established their own administrative headquarters called the "Shugosho" (守護所) to govern their assigned provinces. It was through this "Shugosho" that the Shugo gradually absorbed the functions of the old "Kokufu" and established their unified control over a province.

In essence, the true administrative and military center of a province during the Muromachi period was not the old "Kokufu," but the new "Shugosho" established by the Shugo.

Based on this historical context, I would like to make the following proposal:

  • Proposal & Question: Would it be possible to name the building that is automatically constructed upon a Shugo's appointment "Shugosho"instead of "Kokufu"? This would more accurately reflect the reality of the period.
    • Gameplay Benefits:
      • This would allow players to feel more specifically that they have "established a base of power as a Shugo," rather than just gaining a generic "provincial capital."
      • As a more advanced idea, perhaps at the start of the game, each province could have an old, low-level "Kokufu" building. When a Shugo is appointed, a new, high-level "Shugosho" building would be constructed, which would then overwrite or absorb the functions (like tax income) of the old "Kokufu," thus simulating the historical process of the Shugo taking over the provincial government's functions.
While this might seem like a minor naming change, I believe it would be highly effective in pursuing a more realistic representation of the power structure of the Muromachi period. Thank you for your consideration.

Sincerely,itoma_aikon
I had come across 守護所, but I had understood it more as a descriptive term rather than a concrete concept. The provinces assigned to the Shugo in game are directly the historical Ritsuryo provinces, so I'm still on the fence on which name would be more appropriate here. I'll need to read more into it and see which name would be best. Thank you for the feedback.
 
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