#Seimei-School Additional Sorcery

Contents

Campaign Module — for ex2 spell campaigns only. This document is fc04-only additional spells layered on top of the co-04-07-04-onmyoji.md onmyoji class + the ex2 sorcery spell system. On conflict with the ex2 body, ex2 takes priority. At tables that do not use the ex2 spell structure, these spells are not permitted as independent slots.

Even-dan handling: The spells of 2nd, 4th, 6th, and 8th dan are not independent slots or independent acquisition stages. When you reach that dan, they are offered only as a replaceable option for 1 nearest odd-dan Seimei-school spell already acquired.

#Fiction Intro — The Folded Talisman of the Orthodox

The talismans of the Seimei school were not splendid. A single folded sheet of paper, a few lines of ink, and time that was not wrong. The young onmyoji was uneasy because it looked too ordinary.

"Can it block with only this much?" he asked.

The master pasted the talisman on the threshold. "The orthodox does not try to look big. It only tries not to go astray."

"The Doman school would use a stronger spell."

"A strong spell can break the gate. But what is needed today is to keep the gate from breaking." The master checked the star in the water bowl. "There are times when a procedure that endures long is harder than a sorcery that shines."

As the night deepened, the sound of nails scratching came from outside the gate. The young onmyoji held his breath. The sound circled three times before the threshold, then vanished.

The master did not peel off the talisman. "Did you see? The strength of the orthodox lies in leaving no trace of victory. To make nothing happen is the hardest sorcery of all."

#The Position of This Document

The ex2-35 sorcery spells are structured as 1st, 3rd, 5th, 7th, 9th, and 10th dan from ex2-35-03-sorcery-spells-1dan.md ~ ex2-35-08-sorcery-spells-10dan.md (even dan does not exist in ex2).
This volume layers Seimei-school-only additional spells on top of that.
Some even-dan (2nd, 4th, 6th, 8th) reinforcement is declared only as a replacement option — no independent slot or independent acquisition.
Barrier spells are compatible with ex2-35-15-barrier-spells.md, and prophecy/divination with ex2-35-16-prophecy-spells.md.

The Doman-school additional spells are separately in fc04-05-04-onmyodo-doman.md.

#The Character of the Seimei School

Axis	Character
Shikigami employment	apex
Barrier	master
Astrology/divination	accurate
Purification/mantra	powerful
Stance	defensive, orthodox, court-side

Contrasted with the Doman school (curses, reverse sorcery, self-cost).

#Handling When ex2 Is Not Used

At a table without ex2, the spells of this document are not used; instead, the dan-by-dan traits of the co-04-07-04-onmyoji.md onmyoji class are used as is. The "co Standalone Alternative" box at the end of each spell entry is a reference for interpreting the effect, not a rule that opens an fc04 spell slot.

#Additional Spells by Stage

#1st Dan

#"Lesser Shikigami Talisman (小式神符)"

Item	Value
Maneuver Type	upkeep
Energy	2
Target Number	2d10+Wisdom+Onmyo >= 11
Range	self (beside the caster)
Target	self
Effect	Temporarily summon 1 shikigami. Accompanies for 5 breaths. Capable of scouting and slight defense (Defense +1).
On Failure	additional loss of 1 Energy. Shikigami not summoned.
School Boon	Seimei-school PC: Energy cost -1 (=1). Duration 5 → 7 breaths.

co Standalone Alternative: the co onmyoji "Shikigami Control" 1st-dan trait as is. This spell is a short reinforcement on top of it.

#"Evil-Warding Talisman (辟邪符)"

Item	Value
Maneuver Type	Kata (Wisdom)
Energy	1
Target Number	2d10+Wisdom+Onmyo >= 11
Range	self
Target	self
Effect	For 1 breath, self Defense +2 in 1 direction (additional +1 against yoma only).
On Failure	Energy lost as is. No effect.
School Boon	Seimei-school PC: 1 breath → 2 breaths.

co Standalone Alternative: operate the shikigami of the onmyoji 1st-dan "Shikigami Control" as a one-direction defense.

#2nd Dan (Replacement Option — Not an Independent Slot)

#"Astral 1-Verdict (占星一決)"

Item	Value
Maneuver Type	aptitude (Wisdom)
Energy	3
Target Number	2d10+Wisdom+Onmyo >= 13
Range	line of sight
Target	1 NPC
Effect	1 time per 1 scenario. Divine the "Fate" of one NPC — 1 piece of GM information (one line of that NPC's fate over the coming 1 scenario).
On Failure	Energy lost as is. No information.
School Boon	Seimei-school PC: Target Number -2 (=11).

co Standalone Alternative: use the onmyoji "Divination" general trait as is. This spell reinforces accuracy.

#3rd Dan

#"Barrier 1-Layer (結界一重)"

Item	Value
Maneuver Type	upkeep
Energy	4
Target Number	2d10+Wisdom+Onmyo >= 13
Range	self's position
Target	one room/zone (diameter 10 paces)
Effect	Barrier 1-layer. Blocks 1-stage yoma intrusion (when a yoma attempts to enter, Energy -2 + Target Number 13 evasion check). Maintained for 1 scenario.
On Failure	loss of 2 Energy. Barrier not formed.
School Boon	Seimei-school PC: Target Number -1, duration 1 scenario → 2 scenarios.

co Standalone Alternative: the "Barrier" trait of the onmyoji class body. This spell is the 1-layer variant.

#4th Dan (Replacement Option — Not an Independent Slot)

#"Shikigami Scouting (式神偵察)"

Item	Value
Maneuver Type	aptitude (Wisdom)
Energy	3
Target Number	2d10+Wisdom+Onmyo >= 13
Range	irrelevant (the shikigami moves)
Target	1 shikigami accompanying self
Effect	Send 1 shikigami. For 1 scenario, long-range sight through the shikigami. The shikigami's position is decided by the GM (the PC can designate it).
On Failure	loss of 1 Energy. Shikigami not dispatched.
School Boon	Seimei-school PC: Energy cost -1 (=2), 1 additional zone of range.

co Standalone Alternative: operate scouting with the onmyoji "Shikigami Control." This spell reinforces range and accuracy.

#5th Dan

#"Purification Misogi (浄化禊)"

Item	Value
Maneuver Type	aptitude
Energy	5
Target Number	2d10+Wisdom+Onmyo >= 15
Range	adjacent (1 pace)
Target	1 PC (including self)
Effect	Remove 1 stage of the target's curse or hallucination. Condition removal — not Wounds recovery.
On Failure	loss of 2 Energy. No effect.
School Boon	Seimei-school PC: Target Number -2 (=13), Energy -1 (=4).

Purification = condition removal (turns off curse and hallucination effects)
Recovery = an increase of Wounds +N

This spell does only purification (condition removal). Wounds are recovered separately by Medicine, a Pure Land Monk, and so on.

co Standalone Alternative: the onmyoji "Purification" general trait. This spell reinforces the accuracy of the effect.

#6th Dan (Replacement Option — Not an Independent Slot)

#"Mantra Strike (Lesser) (眞言一擊・小)"

Item	Value
Maneuver Type	Kata (Wisdom)
Energy	4
Target Number	2d10+Wisdom+Onmyo >= 15
Range	line of sight (1 zone)
Target	1 enemy
Effect	With a single mantra, directly strike the enemy's spiritual essence. 2 Wounds. Additional 2 Wounds against yoma only (4 Wounds total).
On Failure	loss of 2 Energy. No effect.
School Boon	Seimei-school PC: Target Number -1, accuracy +1.

co Standalone Alternative: a similar effect is possible by combining the onmyoji "Shikigami Control" + "Barrier." This spell is the direct-hit variant.

#7th Dan

#"Barrier 2-Layer (結界二重)"

Item	Value
Maneuver Type	upkeep
Energy	6
Target Number	2d10+Wisdom+Onmyo >= 15
Range	self's position
Target	one room/zone (diameter 15 paces)
Effect	A multilayer Barrier. Blocks 2-stage yoma intrusion (when a yoma enters, Energy -3 + Target Number 15 evasion + the mental effect "Confusion" for 1 breath). Maintained for 1 scenario.
On Failure	loss of 3 Energy. The Barrier is downgraded to Barrier 1-layer (1-stage intrusion block).
School Boon	Seimei-school PC: Target Number -2, duration 1 scenario → 2 scenarios.

#"Shikigami Squad (式神分隊)"

Item	Value
Maneuver Type	upkeep
Energy	7
Target Number	2d10+Wisdom+Onmyo >= 15
Range	self
Target	self
Effect	Summon 3 shikigami at once. Accompany for 1 scenario (or all vanish). Operated as a squad — 3 actions possible in one breath (1 action per shikigami).
On Failure	loss of 3 Energy. Only 1 shikigami summoned.
School Boon	Seimei-school PC: Energy -1 (=6), shikigami 3 → 4.

co Standalone Alternative: the multiple variant of the onmyoji "Shikigami Control." If the co body has a multiple-shikigami trait, use that.

#8th Dan (Replacement Option — Not an Independent Slot)

#"Immovable Formation (不動の陣)"

Item	Value
Maneuver Type	upkeep
Energy	6
Target Number	2d10+Wisdom+Onmyo >= 15
Range	self's position
Target	one zone (diameter 5 paces)
Effect	Fix the position of self and allies. Nullify forced movement (all movement effects are ignored). Maintained for 1 breath.
On Failure	loss of 3 Energy. No effect.
School Boon	Seimei-school PC: 1 breath → 2 breaths.

#"Mantra Strike (Medium) (眞言一擊・中)"

Item	Value
Maneuver Type	Kata (Wisdom)
Energy	6
Target Number	2d10+Wisdom+Onmyo >= 17
Range	line of sight (2 zones)
Target	1 enemy
Effect	4 Wounds. Additional 4 Wounds against yoma only (8 Wounds total).
On Failure	loss of 3 Energy. No effect.
School Boon	Seimei-school PC: Target Number -2, accuracy +2.

#9th Dan

#"12 Shikigami at Once (十二式神同時)"

Item	Value
Maneuver Type	upkeep
Energy	10
Target Number	2d10+Wisdom+Onmyo >= 17
Range	self
Target	self
Effect	Summon 12 shikigami at once. For 1 breath, a squad effect (Yorimitsu's 4-Heavenly-Kings class). All vanish when it ends.
On Failure	loss of 5 Energy. Downgraded to 6 shikigami.
School Boon	Seimei-school PC: Energy -2 (=8), 1 breath → 2 breaths.

Seimei himself does not use this spell but uses his signature. This spell is the form used by an ordinary onmyoji who received Seimei's teaching.

co Standalone Alternative: the multiple-shikigami trait of the co onmyoji class + squad synergy. This spell is a powerful secret art of a 9th-dan onmyoji.

#10th Dan

#"Rite of Great Purification (大浄化の式)"

Item	Value
Maneuver Type	upkeep (scene ritual)
Effect Category	wide-area purification
Energy	12
Target Number	2d10+Wisdom+Onmyo >= 19
Range	wide area (one entire zone, diameter 20 paces)
Target	everyone within the wide area
Effect	Purify all curses and yoki within a set distance — wide-area condition removal. + 4 Wounds to wide-area enemy yoma (the direct hit of purification). + Remove all allied debuffs.
On Failure	loss of 6 Energy. Effect halved (half area, half Wounds).
School Boon	Seimei-school PC: Target Number -2, Energy -2 (=10).

Purification = condition removal (not Wounds recovery)
4 Wounds to enemy yoma = Wounds damage (Wounds -4)
Allied debuff removal = condition removal

Three effects are in one spell, but it is noted that each is a different kind.

#"Divination of Taizan Fukun (泰山府君の占)"

Item	Value
Maneuver Type	aptitude (Wisdom)
Energy	10
Target Number	2d10+Wisdom+Onmyo >= 19
Range	irrelevant
Target	the scenario itself
Effect	1 time per 1 campaign. Receive 1 line of the scenario's ending as GM information (grasp in advance how it will end at the scenario's close).
On Failure	loss of 5 Energy. No information.
School Boon	Seimei-school PC: Target Number -3, 1 time per 1 campaign → 2 times per 1 campaign.

co Standalone Alternative: the strongest variant of the onmyoji "Divination." Compatible with ex2 ex2-35-16-prophecy-spells.md.

#School Boons (Seimei-School PCs Only)

A PC who is a main-class onmyoji + Seimei-school Licensed receives all of the following adjustments (general adjustments separate from the "School Boon" of each spell):

Adjustment	Effect
Energy -1 on shikigami summon	additional Energy cost -1 on all shikigami-summoning spells (Lesser Shikigami Talisman, Shikigami Squad, 12 Shikigami at Once, and so on)
Astrology/divination Target Number -1	additional Target Number -1 on all divination spells (Astral 1-Verdict, Divination of Taizan Fukun, and so on)
Barrier duration +1	increase the duration of all Barrier spells by 1 stage (1 breath → 2 breaths / 1 scenario → 2 scenarios)

#The Morality of the Orthodox PC

The Seimei-school PC is orthodox Onmyodo. Black-Heart and Demon-Heart PCs are refused. At a moral decision point, they must choose the White-Heart, Mercy-Heart, or Loyal-Heart side. For the detailed morality system, see co's Three Ways and Six Hearts.

#Consistency with Seimei's Signatures

fc04-03-01-seimei.md the signatures of Seimei himself:

"12 Shikigami Array" = the personal variant of this section's 9th-dan "12 Shikigami at Once" (Energy 6, not Energy 10)
"Mantra Strike" = the personal variant of this section's 6th- and 8th-dan "Mantra Strike (Lesser/Medium)"
"Sight of the Shikigami" = compatible with this section's 4th-dan "Shikigami Scouting"

Seimei is one who has mastered all dan. The spells of this section are for the ordinary onmyoji he taught. Seimei's own signatures have lower Energy cost and more precise effects than this section — that is the meaning of the "byword."

#The Division Between ex2 and fc04

Dan	ex2 (body)	fc04 (additional)
1st dan	`ex2-35-03-sorcery-spells-1dan.md` (Lesser Shikigami Summon, etc.)	"Lesser Shikigami Talisman," "Evil-Warding Talisman" (Seimei school)
2nd dan	replacement choice for an odd-dan spell	"Astral 1-Verdict"
3rd dan	`ex2-35-04-sorcery-spells-3dan.md`	"Barrier 1-Layer" (Seimei school)
4th dan	replacement choice for an odd-dan spell	"Shikigami Scouting"
5th dan	`ex2-35-05-sorcery-spells-5dan.md`	"Purification Misogi" (Seimei school)
6th dan	replacement choice for an odd-dan spell	"Mantra Strike (Lesser)"
7th dan	`ex2-35-06-sorcery-spells-7dan.md`	"Barrier 2-Layer," "Shikigami Squad" (Seimei school)
8th dan	replacement choice for an odd-dan spell	"Immovable Formation," "Mantra Strike (Medium)"
9th dan	`ex2-35-07-sorcery-spells-9dan.md`	"12 Shikigami at Once" (Seimei school)
10th dan	`ex2-35-08-sorcery-spells-10dan.md`	"Rite of Great Purification," "Divination of Taizan Fukun" (Seimei school)
Barrier	`ex2-35-15-barrier-spells.md`	compatible (this volume's Barrier spells layer on top of it)
Prophecy	`ex2-35-16-prophecy-spells.md`	compatible (this volume's divination spells layer on top of it)

When using ex2: both are usable. The fc04 even-dan spells are not independent slots but options that replace 1 nearest odd-dan Seimei-school spell already acquired when that dan is reached. When not using ex2: only the body of the co onmyoji class is used. The spells of this document are not opened as independent spell slots.

#In One Line

"Seimei's teaching was not the secret art of one person — it was the beginning of one school."

#References

#co

co-04-character/co-04-07-classes/co-04-07-04-onmyoji.md — the body of the onmyoji class (the foundation of these spells)

#ex2 — Sorcery Spell System

ex2-35-spell-system/ex2-35-03-sorcery-spells-1dan.md — sorcery 1st dan
ex2-35-spell-system/ex2-35-04-sorcery-spells-3dan.md — sorcery 3rd dan
ex2-35-spell-system/ex2-35-05-sorcery-spells-5dan.md — sorcery 5th dan
ex2-35-spell-system/ex2-35-06-sorcery-spells-7dan.md — sorcery 7th dan
ex2-35-spell-system/ex2-35-07-sorcery-spells-9dan.md — sorcery 9th dan
ex2-35-spell-system/ex2-35-08-sorcery-spells-10dan.md — sorcery 10th dan · master
ex2-35-spell-system/ex2-35-15-barrier-spells.md — Barrier
ex2-35-spell-system/ex2-35-16-prophecy-spells.md — prophecy/divination

#Within fc04

fc04-02-03-onmyodo.md — overview of Onmyodo
fc04-03-01-seimei.md — Seimei's signatures (compatible with this section's 9th-dan spell)
fc04-05-04-onmyodo-doman.md — the Doman school (the pair)
fc04-06-01-aristocratic.md — aristocratic scenarios (examples of spell use)

The orthodox talisman does not shine — it only keeps the darkness from entering further.