#Tamamo-no-Mae (玉藻前)
Contents
Fiction-Only + Summary. This document creates no new data. The main sheet for Tamamo-no-Mae is the "Nine-Tailed Fox / Tamamo-no-Mae" (lord-rank boss, political/negotiation-type final boss) in
co-08-02-monster-templates.md, used as is. This volume adds only the narrative of the Heian Japan portion and the environmental effects of the Killing Stone on top of it.
#Fiction Intro — The Perfect Smile
The woman of the consorts' quarters was too beautiful. So beautiful that the lamps seemed unable to cast her shadow. Everyone praised her, and no one could look at her for long.
The emperor smiled. "When you are here, even illness seems to grow lighter."
Tamamo-no-Mae lowered her head. "If His Majesty feels so, it is the highest honor for me."
The onmyoji at one side of the gathering did not smile. The official beside him asked in a low voice. "Is beauty a sin?"
"No," said the onmyoji. "But perfection is sometimes made to hide a flaw. A human face must always have fatigue and mistakes. In her, there are too few of them."
That night the emperor's fever rose further. The incense was sweet, the words of the court were soft, and no one wished to speak their doubt aloud. The fear of Tamamo-no-Mae lay, before her sharp teeth, in the fact that everyone wanted to believe the perfect smile.
#Scent — The Peerless Beauty of the Consorts' Quarters
An autumn in the Daiji (大治) era. The consorts' quarters of Emperor Toba (鳥羽天皇). There is a woman newly arrived. Her name is "Tamamo (玉藻)." Her origin is unknown. By whose recommendation she entered is not clear either. But in the month after she came — the emperor sought no other consort.
Tamamo knows everything. When someone recites one line of a Chinese poem, she continues the next. When someone plays one passage of music, she answers with the next. When the emperor asks about astrology, she draws out the constellations to show him. "Who taught this woman?" — the other women of the quarters ask, but she does not give the name of her master.
Half a year after Tamamo entered the palace. The emperor begins to fall ill. Medicine brings no improvement. Divination gives no answer. Only Tamamo sees at his side that the emperor is wasting away. No one else suspects Tamamo — she is the emperor's nearest love.
An onmyoji of the capital reads the constellations. At the center of the constellations — there is something black. Something not human. He reports to the imperial house.
"His Majesty's illness is not the work of a human woman."
The onmyoji's name is Abe no Yasuchika (安倍泰親) — a 5th-generation descendant of Seimei. As Seimei purified the darkness in Michinaga's bedchamber 100 years before, his descendant now sees another darkness in the emperor's consorts' quarters.
#Core Data
| Item | Value |
|---|---|
| Name | Tamamo-no-Mae (玉藻前) — "Before Tamamo" |
| True Form | 9-Tailed White Fox (九尾白狐) |
| History | India queen of Magadha → China Daji of Yin · Bao Si of Zhou → Japan consort of the Heian Toba court |
| Activity | Tradition of the late Heian, the era of Retired Emperor and Cloistered Emperor Toba |
| Exposure | Onmyoji Abe no Yasuchika (安倍泰親, 1110~1183) — 5th-generation descendant of Seimei |
| Flight | The fields of Nasuno (那須野) |
| Subjugation | Around 1156, the warrior band of Miura-no-suke (三浦介) · Chiba-no-suke (千葉介) and others |
| After Death | Her form turns into the "Killing Stone (殺生石)" — a stone that kills whoever touches it |
| This Volume's Sheet | None. The "Nine-Tailed Fox / Tamamo-no-Mae" sheet in co-08-02-monster-templates.md is used as is. |
#The One Who Exposes Her — Yasuchika vs Yasunari
In the old "Tamamo-no-Mae" legend, Abe no Yasuchika (安倍泰親) is the 1st canonical account. His period of activity (1110~1183) is consistent if one includes not only Emperor Toba's reign but also the era when, after abdication, Toba wielded influence as Retired Emperor and Cloistered Emperor.
In the later Muromachi-period Noh (能) play "Sessho-seki," it was altered to Abe no Yasunari (阿倍泰成). This volume adopts the 1st canonical account, Yasuchika. Use Yasunari only in scenarios that deal with the later Noh variant.
#India, China, Japan — The 9 Tails of 3 Realms
Tamamo-no-Mae is not a yoma of Japan alone. Her history spans 3 realms.
#India — Queen of Magadha
The oldest tradition. The tale of her becoming a queen of Magadha in India and destroying the kingdom. This volume treats it only briefly — the detailed Indian myth is deferred to the foreign-deity index of fc01-03-00-foreign-index.md and to a later volume (fc06, the period of introducing Outside divinities in the bakumatsu).
#China — Daji of Yin (妲己) · Bao Si of Zhou (褒姒)
In the Chinese tradition, she destroyed two dynasties. Daji, consort of King Zhou of Yin, and Bao Si, consort of King You of Zhou. In both dynasties, a king who fell for her beauty mishandled governance and brought ruin — the prototype of the "beauty that topples a nation" (傾國之色).
This volume also treats it briefly — the detailed Chinese myth goes to fc01 Outside divinities or to a later volume.
#Japan — Consort of the Toba Court
The focus of this volume. In the late Heian, she became "Tamamo," consort of the Toba court, and made the emperor ill. Her identity exposed by Yasuchika, she flees → preys upon people at Nasuno → is subjugated by a warrior band → turns into the Killing Stone after death.
#Anecdote — Full Version (Japan Portion)
#1. Entering the Palace
Tamamo-no-Mae enters Emperor Toba's consorts' quarters as "Tamamo." Both her origin and her recommendation are vague. She is a peerless beauty and learned in all things.
#2. The Emperor's Illness
Half a year after Tamamo enters the palace, the emperor begins to fall ill. Medicine, divination, and prayer are all without effect.
#3. Yasuchika's Divination
Abe no Yasuchika, an onmyoji of the capital, reads the constellations. The darkness at the center of the constellations — it is within the consorts' quarters. Yasuchika reports to the imperial house — "His Majesty's illness is not the work of a human woman."
#4. The Exposure
The imperial house orders a rite. Yasuchika tests the consorts' quarters with a Barrier and divination. Tamamo can no longer hide her true form — her shape transforms into a 9-tailed white fox. The whole quarters is gripped with shock.
#5. Flight
Tamamo flees the spot. Her 9 tails vanish like the wind beyond the capital. The emperor's illness begins to recover from that moment.
#6. Nasuno
The place Tamamo flees to is the fields of Nasuno (那須野), east of the capital. Present-day Tochigi Prefecture. There she begins to prey upon the farmers and travelers of nearby villages. For more than a decade even after her identity became known in the capital, Nasuno was her territory.
#7. Subjugation
Around the first year of Hogen (1156). A warrior band ordered by the imperial house — Miura-no-suke (三浦介) and Chiba-no-suke (千葉介) and others — sets out to subjugate Nasuno. With great difficulty, losing many warriors — they finally slay the 9 tails.
#8. The Killing Stone
The true form of the slain 9 tails turns into a single stone. The Killing Stone (殺生石) — a stone that kills whoever touches it. The grass and birds nearby also die if they come close to the stone. The warrior band tries to shatter the stone, but it does not break. In the end they set a Barrier around the stone and return to the capital.
#9. Purification of the Killing Stone (Late Muromachi)
In the Muromachi period (around the 14th century), a monk — Genno Shinsho (玄翁心昭) — comes to Nasuno and purifies the Killing Stone. He shatters the Killing Stone with a great mallet, and from within it the soul of the 9 tails is released and at last attains peaceful passing. In later ages the name "genno (玄翁)," the Japanese great mallet, came from this monk's name.
Within the time range of this volume fc04 (up to 1185), the purification of the Killing Stone does not occur — the Killing Stone remains at Nasuno until the end of the Heian.
#10. Modern Day — The 2022 Crack of the Killing Stone
An event outside this volume's time range — in March 2022, the Killing Stone at Nasuno naturally split into two pieces (a real event). On Japanese social media the joke that "the seal has been broken" became a topic. This volume places it as a hook leading to later volumes (fc09 · fc10 modern day) — "a shadow of the Heian carried into the present."
#Sheet Handling — co Reuse + Killing Stone Environmental Effects
#Main Body — Tamamo-no-Mae
This volume places no new sheet. The "Nine-Tailed Fox / Tamamo-no-Mae" sheet in co-08-02-monster-templates.md is used as is. Lord-rank boss, classified as a political/negotiation-type final boss (see co-11-14-enemy-catalog.md).
#Separately — Killing Stone Environmental Effects
The Killing Stone itself is not an NPC sheet. It is an environmental effect. Handle as follows in this volume:
| Effect | Handling |
|---|---|
| Near the Killing Stone (within 1 zone) | At the start of each breath the PC takes Wounds -1 (curse effect). When no Barrier is equipped. |
| Direct contact with the Killing Stone | PC Wounds -3 (immediate). Self-recovery -1 for 1 scenario. |
| PC equipped with a Barrier | The proximity effect is nullified. The direct-contact effect is halved (Wounds -1). |
| Onmyoji casts a Barrier | Caster Energy 5 + Target Number 17 (extreme). On success, all PCs inside the Barrier are immune to the Wounds effect for 1 breath. On failure, caster Wounds -2. |
- Killing Stone = Wounds effect. PC takes Wounds -1 each breath (not Energy).
- Barrier casting = Energy cost (caster).
- Barrier failure = caster Wounds -2 (recoil).
- No treatment or detox — it cannot be blocked on the spot by Medicine, Herbalism, or Pure Land Monk recovery.
- Means of avoidance — only two: the Barrier (onmyoji rite) or physical relocation (leaving beyond 1 zone).
- Application of the no-myth-rank-data principle — the Killing Stone is not an NPC sheet but an environment, and this volume places no separate myth-rank sheet.
#Charm Effect — Main Body Sheet
The "Charm" effect of the Nine-Tailed Fox / Tamamo-no-Mae sheet in co-08-02 is handled as follows in this volume:
| Charm Type | Effect Category | Effect |
|---|---|---|
| "Action Seal" Charm | Energy effect | The PC cannot act for 1 breath. Energy -1 additional. |
| "Mental Damage" Charm | Wounds effect | PC Wounds -N (mental damage). |
| "Doubt Block" Charm | Mental effect | The PC receives the next strike Defenseless. |
#Scenario Use
#Late Toba-Court PC — Identity Investigation
A PC appears as an onmyoji or warrior in the late Toba-court period (early to mid 12th century). As Yasuchika's assistant or a separate investigation team, they track Tamamo's identity. Instead of full data, handle it with investigation clues + scenario decision points.
#The Stage Just Before Subjugation — Yasuchika's Assistant
The stage just before Yasuchika exposes Tamamo's identity. The PC handles Barrier casting, divination support, information gathering, and the like. A direct confrontation with this NPC's main body is not recommended — the co-08-02 sheet is a lord-rank boss and requires a squad of 7th~9th dan.
#Killing Stone Purification Rite — Muromachi or Later
Within this volume's time range (up to 1185), the purification of the Killing Stone does not occur. The Killing Stone scenario is a matter for later volumes (fc05 Edo, or fc09 · 10 modern day). In this volume the Killing Stone is set as a scenario mystery — only to the extent that if a PC goes to Nasuno, it is there inside the Barrier.
For a detailed scenario seed, see seed 6 "Echo of the Killing Stone" in fc04-06-02-mountain.md.
#The 1156 Subjugation — The Same Year as the Hogen Rebellion
The period of Tamamo-no-Mae's subjugation (around 1156) is the same year as the Hogen Rebellion (1156). It means that the subjugation of a 9-tailed white fox occurred in the very midst of Heian political drama. It is possible in this volume's campaign to handle the two events at once — a parallel scenario where one part of the PC squad joins the Hogen Rebellion and another joins the Nasuno subjugation.
#Linking to Later Volumes
This volume fc04 treats only the Japan portion. The India and China portions go to fc06 (bakumatsu, the period of introducing Outside divinities) or to later volumes — they can link with the foreign-deity index of fc01-03-00-foreign-index.md.
The modern echo of the Killing Stone (the 2022 crack) leads to the "ancestral regression / revival of the Heian shadow" motif of fc09 (end of the century) · fc10 (the city).
#Tone
The 9 tails behind the mask of a beauty. An international yoma. A thousand years of murderous intent condensed into a single stone.
"The most beautiful thing is the most terrifying."
The dark underside of Heian aesthetics. The scene of Tamamo never leaving Emperor Toba's side for a moment — that scene, where love becomes a weapon, is the essence of this NPC. To kill her by direct means is hard. Even after her death she — becoming the Killing Stone — survived for a thousand years.
#In One Line
"It began in India, passed through China, came to Japan, and even in death remained as a stone."
#References
#co — Sheet (Reuse)
co-08-gm-tools/co-08-02-monster-templates.md— the main Nine-Tailed Fox/Tamamo-no-Mae sheet (lord-rank boss)co-11-appendix/co-11-14-enemy-catalog.md— enemy catalog (political/negotiation-type final boss)
#fc Preceding Volumes
fc01-03-00-foreign-index.md— foreign-deity index (Indian and Chinese divinities — the India-Magadha and China-Daji portions)
#Within fc04
fc04-02-03-onmyodo.md— Onmyodo (Yasuchika's learning)fc04-03-01-seimei.md— Seimei (Yasuchika is his 5th-generation descendant)fc04-06-02-mountain.md— mountain scenario (Killing Stone seed)fc04-99-00-closing.md— series later-volume links
#Other fc Volumes
fc02-01-03-realm-split.md— the Killing Stone across eras (Spirit Realm model)
#Sources (External)
- "Tamamo-no-Mae" old legend — Yasuchika (安倍泰親) the exposer (1st canonical account)
- "Sessho-seki" Noh (能) play — Yasunari (阿倍泰成) variant (late Muromachi)
- The March 2022 Killing Stone crack event (real)
When beauty is too perfect, the court must first suspect its shadow.

