🏯 Three-Country Alliance (1555) – Scenario
In 1555, Shingen Takeda of Kai, Yoshimoto Imagawa of Suruga, and Ujiyasu Hojo of Sagami formed an alliance,
known as the Kai–Suruga–Sagami Three-Country Alliance (Kōsōsun Sangoku Dōmei).
This drastically changed the balance of power in eastern Japan, heightening tensions with the Oda clan in Owari,
the Uesugi clan in Echigo, and various Kanto powers.
The player chooses one of the factions and, through diplomacy, war, and internal policy,
experiences the history of maintaining, expanding, or collapsing the alliance.
📘 Scenario Background
- Origin: The Takeda, Imagawa, and Hojo were all expanding their territories, and border conflicts were constant.
→ A marriage alliance was arranged, establishing a pact of non-aggression and mutual military cooperation. - Challenges: In Shinano and Echigo, Nagao Kagetora (later known as Uesugi Kenshin) was rising in power; in Kanto, Kanrei Uesugi Norimasa and allied lords opposed Hojo dominance.
- Prospects: If the alliance is maintained, stability may come to the east. If interests clash, however, collapse is inevitable.
👉 Diplomacy or War? The player’s choices will shape history.
🧭 Victory Conditions
- Takeda Clan: Secure control of Shinano and suppress the Uesugi of Echigo.
- Imagawa Clan: Dominate the Tōkaidō region and check the Oda.
- Hojo Clan: Consolidate Kanto and drive out Uesugi influence.
- Uesugi Clan: Expand into Shinano and Kanto, and divide the alliance.
※ Each clan has unique victory conditions achievable through diplomacy, warfare, or domestic policy.
🔀 Events
| Year / Condition | Event Description | Effect (example) |
|---|---|---|
| 1556 – Shinano unrest | Yoshikiyo Murakami appeals for Uesugi aid | Local war between Takeda and Uesugi occurs |
| 1557 – Death of Sessai | Imagawa loses diplomatic strength | Relations with Oda worsen |
| 1559 – Hojo conquers Kanto | Kanrei Uesugi Norimasa expelled | Event: Kagetora appointed as new Kanto Kanrei |
| 1560 – Battle of Okehazama | Nobunaga Oda defeats Yoshimoto Imagawa | If Yoshimoto survives (alt. route) → “Conquest of Tōkaidō” |
🧠 Faction Information
🟥 Takeda Clan (Shingen Takeda)
- Base: Tsutsujigasaki Residence (Kofu)
- Rice yield: 250,000 koku
- Troops: 15,000
- Provisions: 9,000
- Gold: 4,000 kanmon
-
Leadership: 92 Valor: 84 Intelligence: 88 Politics: 86 Charisma: 90 - Traits: Cavalry Corps, Mountain Warfare Adaptation
Key Retainers
| Name | Lead | Valor | Intel | Pol | Cha | Note |
|---|---|---|---|---|---|---|
| Yamagata Masakage | 88 | 84 | 72 | 60 | 75 | Red-armored unit |
| Baba Nobuharu | 85 | 83 | 74 | 68 | 72 | Indestructible veteran |
| Kosaka Masanobu | 80 | 78 | 75 | 70 | 78 | “Escape Strategist” |
| Sanada Yukitaka | 77 | 76 | 78 | 72 | 80 | Master of intrigue |
🟩 Imagawa Clan (Yoshimoto Imagawa)
- Base: Sunpu Castle (Suruga)
- Rice yield: 280,000 koku
- Troops: 18,000
- Provisions: 11,000
- Gold: 4,500 kanmon
-
Leadership: 85 Valor: 72 Intelligence: 90 Politics: 88 Charisma: 82 - Traits: Diplomacy, Tōkaidō dominance
Key Retainers
| Name | Lead | Valor | Intel | Pol | Cha | Note |
|---|---|---|---|---|---|---|
| Taigen Sessai | 82 | 70 | 92 | 88 | 78 | Monk-statesman, diplomacy |
| Asahina Yasutomo | 75 | 76 | 68 | 60 | 70 | Eastern Tōtōmi vassal |
| Udono Nagamoto | 70 | 74 | 65 | 55 | 68 | Naval supporter |
| Iio Tameatsu | 72 | 73 | 70 | 66 | 72 | Lord of Tanaka Castle |
🟦 Hojo Clan (Ujiyasu Hojo)
- Base: Odawara Castle (Sagami)
- Rice yield: 300,000 koku
- Troops: 20,000
- Provisions: 13,000
- Gold: 5,000 kanmon
-
Leadership: 90 Valor: 80 Intelligence: 85 Politics: 88 Charisma: 85 - Traits: Fortifications, Stable Supply Lines
Key Retainers
| Name | Lead | Valor | Intel | Pol | Cha | Note |
|---|---|---|---|---|---|---|
| Hojo Tsunashige | 82 | 78 | 70 | 68 | 74 | Yellow Banner Warrior |
| Fūma Kotarō | 78 | 80 | 72 | 60 | 76 | Ninja leader, disruption |
| Toyama Yasumitsu | 70 | 72 | 66 | 65 | 68 | Domestic affairs |
| Matsuda Norihide | 75 | 70 | 72 | 70 | 70 | Diplomatic adjuster |
🟨 Uesugi Clan (Nagao Kagetora / later Kenshin)
- Base: Kasugayama Castle (Echigo)
- Rice yield: 220,000 koku
- Troops: 12,000
- Provisions: 8,000
- Gold: 3,500 kanmon
-
Leadership: 90 Valor: 86 Intelligence: 84 Politics: 80 Charisma: 88 - Traits: Righteous General, High Morale
Key Retainers
| Name | Lead | Valor | Intel | Pol | Cha | Note |
|---|---|---|---|---|---|---|
| Honjo Shigenaga | 76 | 78 | 70 | 66 | 70 | Local lord |
| Amakasu Kagemochi | 75 | 76 | 68 | 65 | 66 | Defender |
| Kakizaki Kageie | 78 | 80 | 70 | 68 | 72 | Fierce warrior |
| Naoe Kagetsuna | 80 | 74 | 75 | 70 | 78 | Domestic administrator |
🎮 How to Play (for ChatGPT)
- Copy one of the following “templates” and insert your own player name.
- Choose initial options (diplomacy, war, domestic policy) to begin play.
👉 Each faction leads to different scenarios.
🏯 Three-Country Alliance (1555) – Play Template Collection
🟥 Takeda Clan Template
📝 Play Log: Three-Country Alliance (Takeda Shingen)
🎮 Player Info
- Player Name: your_name_here
- Faction: Takeda Clan (Shingen Takeda)
- Base: Tsutsujigasaki Residence (Kofu)
- Retainers: Yamagata Masakage, Baba Nobuharu, Kosaka Masanobu, Sanada Yukitaka
- Initial Army: 15,000 troops
📘 Scenario Info
- Title: Three-Country Alliance (1555)
- Year: 1555
- Initial Situation: Alliance formed. The future of Shinano and diplomacy is uncertain.
- Rivals: Uesugi Clan, Oda Clan, others
🎯 Initial Choices
- [ ] Strengthen the Alliance (better diplomacy & supply)
- [ ] Independent Policy (expansion, alternate history route)
🟩 Imagawa Clan Template
📝 Play Log: Three-Country Alliance (Imagawa Yoshimoto)
🎮 Player Info
- Player Name: your_name_here
- Faction: Imagawa Clan (Yoshimoto Imagawa)
- Base: Sunpu Castle (Suruga)
- Retainers: Taigen Sessai, Asahina Yasutomo, Udono Nagamoto, Iio Tameatsu
- Initial Army: 18,000 troops
📘 Scenario Info
- Title: Three-Country Alliance (1555)
- Year: 1555
- Initial Situation: Alliance formed. Securing the Tōkaidō and preparing against Oda are key.
- Rivals: Oda Clan, Hojo relations to maintain
🎯 Initial Choices
- [ ] Strengthen the Alliance (better diplomacy & supply)
- [ ] Independent Policy (expansion, alternate history route)
🟦 Hojo Clan Template
📝 Play Log: Three-Country Alliance (Hojo Ujiyasu)
🎮 Player Info
- Player Name: your_name_here
- Faction: Hojo Clan (Ujiyasu Hojo)
- Base: Odawara Castle (Sagami)
- Retainers: Hojo Tsunashige, Fuma Kotaro, Toyama Yasumitsu, Matsuda Norihide
- Initial Army: 20,000 troops
📘 Scenario Info
- Title: Three-Country Alliance (1555)
- Year: 1555
- Initial Situation: Alliance formed. Controlling Kanto and countering Uesugi are challenges.
- Rivals: Uesugi Clan, Kanto lords
🎯 Initial Choices
- [ ] Strengthen the Alliance (better diplomacy & supply)
- [ ] Independent Policy (expansion, alternate history route)
🟨 Uesugi Clan Template
📝 Play Log: Three-Country Alliance (Nagao Kagetora / Uesugi Kenshin)
🎮 Player Info
- Player Name: your_name_here
- Faction: Uesugi Clan (Nagao Kagetora)
- Base: Kasugayama Castle (Echigo)
- Retainers: Honjo Shigenaga, Amakasu Kagemochi, Kakizaki Kageie, Naoe Kagetsuna
- Initial Army: 12,000 troops
📘 Scenario Info
- Title: Three-Country Alliance (1555)
- Year: 1555
- Initial Situation: Encircled by the alliance. Expansion into Shinano or diplomacy?
- Rivals: Takeda Clan, Hojo Clan
🎯 Initial Choices
- [ ] Oppose the Alliance, invade Shinano (aggressive route)
- [ ] Defensive stance, seek new alliances (diplomatic route)