#Lands of the Sengoku (戰國の國, Regions)
Contents
The climate, yoma, factions, and specialties of each region. Use this when the GM sets the stage for a campaign.

#Kinai (畿內) — Center of the Realm
#Scent
The cultural center around Kyoto, where the emperor sits. The oldest cities and the oldest yoma coexist here. A stage for politics and intrigue.
#Law
- Factions: Kagura Domain (near its base), Hiei League (Mount Hiei), Sakai Guild (Sakai Port)
- Yoma Traits: many onryo and yoko. Few oni. "Civilized" yoma.
- Specialties: silk, blades (source of famed swords), sutras, sacred sake
- Campaign Themes: political intrigue, negotiations among factions, yoko infiltration, secrets within cities
#Kanto (關東) — Land of Warriors
#Scent
Broad plains and rugged mountains. The home ground of blunt, hard-edged warriors. Fuma Band (風魔衆) moves in the dark, and large-scale field battles are fought here.
#Law
- Factions: Fuma Band, Ikko-ikki (some branches)
- Yoma Traits: many oni in the mountains. Giant yoma such as nue and gyuki also appear.
- Specialties: horses (source of mounted warriors), iron, gunpowder ingredients
- Campaign Themes: large field battles, cavalry charges, ninja operations, domain disputes
#Omi (近江) — Land of Lakes and Technology
#Scent
A fertile region around Lake Biwa (琵琶湖). Kunitomo Guild makes teppo and karakuri here. Aquatic yoma live in the lake, and lakeside villages learned long ago how to coexist with yoma.
#Law
- Factions: Kunitomo Guild, Enryokan (nearby)
- Yoma Traits: aquatic yoma (kappa, Ryugu-related beings). Spider faction (Ibuki Garden).
- Specialties: teppo, karakuri, medicinal herbs, freshwater fish
- Campaign Themes: the boundary between technology and yoma, underwater scenarios, experiments in coexistence
#Kii (紀伊) — Holy Sites and Deep Forest
#Scent
The deep woods and sacred mountains of Kumano (熊野). A land of ascetics. Esoteric monks and Pure Land monks range through the mountains, and tengu legends are strongest here. The mountains themselves are filled with spiritual energy.
#Law
- Factions: Hiei League (branch), Muhyeon Band (tengu, near Kurama)
- Yoma Traits: tengu are dominant. Lesser yoma are few because the tengu manage them.
- Specialties: sealing talismans, ascetic tools, spirit-medicine ingredients
- Campaign Themes: tengu trials, training and enlightenment, exploring the boundary of the Spirit Realm
#Saikai (西海) — Foreign Winds
#Scent
Kyushu (九州) and the south. The gateway of Nanban (南蠻) trade. Teppo first arrived here, and foreign culture and religion flow in. The homeland of foreigner characters.
#Law
- Factions: Sakai Guild (trade base), foreigner powers
- Yoma Traits: sea yoma (umibozu, funayurei). Unknown yoma coming up from the south.
- Specialties: teppo, gunpowder, Nanban armor, foreign medicines, glass
- Campaign Themes: maritime trade, pirates, foreign cultural clashes, unknown yoma
#Ou (奧羽) — Northern Wilds
#Scent
The old lands of the Emishi (Ainu). Deep mountains and harsh winters. In remote places beyond Yamato culture, wildlanders live with kamuy. This is one of the places where the boundary of the Spirit Realm is thinnest.
#Law
- Factions: wildlander tribes (many, small), Shuten Mountain (oni influence expanding)
- Yoma Traits: ancient yoma. Beings that are only legends elsewhere are alive here.
- Specialties: furs, medicinal herbs, obsidian, blessings of kamuy
- Campaign Themes: survival, encounters with wildlanders, ancient yoma hunts, Spirit Realm exploration
#Campaign Tone by Region
| Region | Tone Keywords |
|---|---|
| Kinai | politics, intrigue, elegant horror, urban secrets |
| Kanto | great battles, cavalry charges, ninja shadow wars, broad plains |
| Omi | technology, underwater scenes, attempts at coexistence, lake mysteries |
| Kii | ascetic training, sacred mountains, tengu, spiritual enlightenment |
| Saikai | foreign lands, maritime, gunpowder, cultural clashes |
| Ou | wilderness, survival, antiquity, the boundary of the Spirit Realm |
#Regional Yoma Encounter Chances
Tendencies for yoma that often appear in each region. Use this when modifying the Yoma Encounter Table.
| Region | Common Yoma | Rare Yoma | Almost Never Appears |
|---|---|---|---|
| Kinai | yoko, onryo, bakeneko, tsukumogami | tanuki, rokurokubi | oni, ancient yoma |
| Kanto | oni, nue, kamaitachi | gashadokuro | sea yoma, tengu |
| Omi | kappa, kumo, Ryugu messengers | bakeneko, ayakashi | tengu, ancient yoma |
| Kii | tengu, kodama, yamauba | yumekui | sea yoma, oni |
| Saikai | umibozu, funayurei, ayakashi | Ryugu messengers | tengu, ancient yoma |
| Ou | Arahabaki, shikome, Konryu | seeds of Izanami | urban yoma |
#Regional School Distribution
| Region | Active Schools | Reason |
|---|---|---|
| Kinai | Yagyu Shinkage-ryu, Tsuchimikado-ryu, Mansei-ryu | Near Kyoto. Politics and scholarship. |
| Kanto | Katori Shinto-ryu, Fuma Band (Iga/Koga-ryu) | Eastern warriors and ninja. |
| Omi | Inatomi-ryu, Abe-ryu | Kunitomo Guild gunnery, lakeside Onmyodo. |
| Kii | Shugendo-ryu, Shingon Exorcism-ryu, Hozoin-ryu | Mountain ascetic sites, temples of Nara. |
| Saikai | Nanban-ryu, Gassen-ryu | Foreign technology inflow, naval war experience. |
| Ou | Takenouchi-ryu | Wildlander unarmed combat. Few schools; much is self-taught. |
#Regional Scenario Hooks (d10)
#Kinai (Kyoto/Sakai)
| d10 | Scenario Hook |
|---|---|
| 1 | Repeated disappearances in the Sakai market. A bakeneko's work, or a Biu Mountain operation? |
| 2 | A Kyoto noble makes a request: "A yoko is hidden in my estate. Find it." |
| 3 | Hiei League declares a punitive expedition against Enryokan. An envoy asks for mediation. |
| 4 | A tsukumogami awakens in a 300-year-old temple. Exorcism, or dialogue? |
| 5 | Yoma materials are found in a Sakai Guild secret storehouse. Evidence of smuggling? |
| 6 | The emperor's envoy has been assassinated. Who did it? Why? Track the truth. |
| 7 | A Kagura Domain delegation holds secret talks with Sakai Guild. Infiltrate and steal information. |
| 8 | A Hannya Altar ritual is underway. Stop those trying to break the seal. |
| 9 | A shikigami runs wild in an onmyoji's garden. A scholar's request: "Please calm my shikigami." |
| 10 | Drums sound every night from the mountain across the river. A gathering of Muhyeon Band tengu? |
#Kanto (Musashi/Kai)
| d10 | Scenario Hook |
|---|---|
| 1 | Oni come down from the mountain. Village defense. Barricades and traps are key. |
| 2 | A secret Fuma Band order: "Steal the enemy commander's camp map." Infiltration mission. |
| 3 | A mountain road where a nue appears. Escort a peddler. During the escort, the composite creature's identity is revealed. |
| 4 | Ikko-ikki uprising. Fight the peasant army, or join it. |
| 5 | A swarm of kamaitachi attacks a village. Battle against invisible enemies. Detection is key. |
| 6 | Signs of a gashadokuro in a ruined castle. Graveyard exploration. |
| 7 | Escort a daimyo's messenger. Pass through another daimyo's territory. Political intrigue. |
| 8 | An entire village vanished. The last trace is a gigantic footprint. |
| 9 | Two daimyo prepare for battle. Which side does the PC unit take? Or do they negotiate with both? |
| 10 | A Hannya sealed in a mountain castle is about to awaken. Strengthen the seal, or release it? |
#Kii (Kumano/Kurama)
| d10 | Scenario Hook |
|---|---|
| 1 | A tengu trial. A great tengu demands a martial bout on Mount Kurama. |
| 2 | A mountain temple is surrounded by yamauba. Rescue the monks. What is the yamauba's true purpose? |
| 3 | Logging begins in a kodama forest. The kodama's anger → transforms into veteran-grade. Mediation. |
| 4 | A yumekui is eating villagers' dreams. Is it a nightmare, or benevolence? |
| 5 | A Spirit Realm fissure opens in a temple built on a ley line. Guard the sealing ritual. |
| 6 | A Shugendo master disappears. Deep in the mountains, traces of ancient yoma. |
| 7 | Screams come from a volcano crater every night. A ritual by Shuten Mountain followers. |
| 8 | The principal image of a Kannon hall is stolen. It has fallen into the hands of a yoma trader. Tracking request. |
| 9 | A giant spiderweb in the forest. A spider shrine maiden of Ibuki Garden is expanding her territory. |
| 10 | Light leaks from the peak of a sacred mountain. Divine descent, or a seal breaking? |
The Sengoku is wide. With blade in hand, where will you go?



