Reisen Udongein Inaba (Eternal)

Fes

Lunatic Moon Rabbit (Eternal)

Stats

Health

5000

Agility

1405

Yang ATK

955

Yang DEF

900

Yin ATK

1625

Yin DEF

1015

Races

Bamboo Forest of the Lost Beast Beast Youkai Eientei Gensokyo Medicine Moon Rabbit Moon-Related Party Rabbit Servant Youkai

Element Type Chart

Yamagasumi

Expand

Yamagasumi (a Touhou LW original) refers to mist in the hills and mountains. This is an apt temperament for a moon rabbit that has descended from the heavens. Reisen is endowed with Wood Phase, as a rabbit, and Moon Essence, because she is from the moon.

The strong and kind Wood Phase resists Water Phase, because water nourishes wood, but it is weak to Metal Phase, because metal carves wood.

The cooperative and indecisive Moon Essence resists the alluring and arrogant Sun Essence, but it is weak to the diverse and uncooperative Star Essence.

Sun

Moon

Fire

Water

Wood

Metal

Earth

Star

Character Shots

Outdated Mind Wave

The Spread Shot of Reisen Udongein Inaba from the world of eternal night (a Touhou LW original). She fires out multiple waves of bullets in all directions. Apparently, moon rabbits harbor more madness in their eyes than Earth rabbits. It is said that brainwaves are more lunatic the higher the frequency, so perhaps the waves emitted from moon rabbits' eyes are high-frequency brainwaves.

	All	Mind Interfering Wave Bullet	x6	Yin
Normal Bullet Element: None PWR 2.91 ACC 90% CRI 3% [Shrine Maiden-Killer] [Magician-Killer] [Maid-Killer] [Half-Human Half-Phantom-Killer] [Sage-Killer] [Doll-Killer] [Vampire-Killer] [Ghost-Killer] [Sure-Hit]Always hits regardless of Accuracy stat.
	All	Mind Manipulating Wave Bullet	x2	Yin	1
Normal Bullet Element: Moon PWR 2.42 ACC 85% CRI 5% [All Targets][Smokescreen]25% chance to inflict Barrier Status: Blind to All Targets (3 turn(s)).
	All	Conscious Mind Wave Bullet	x2	Yang	1
Normal Bullet Element: None PWR 2.22 ACC 85% CRI 5% [Sure-Hit]Always hits regardless of Accuracy stat.
	All	Preconscious Mind Wave Bullet	x2	Yang	2
Normal Bullet Element: None PWR 2.1 ACC 80% CRI 7% [Shrine Maiden-Killer] [Magician-Killer] [Maid-Killer] [Half-Human Half-Phantom-Killer] [Slice]DMG scales with ATK in addition to 40% of Agility
	All	Unconscious Mind Wave Bullet	x2	Yang	2
Normal Bullet Element: None PWR 1.89 ACC 80% CRI 7% [Sage-Killer] [Doll-Killer] [Vampire-Killer] [Ghost-Killer]
	All	Mind Influencing Wave Bullet	x2	Yin	3
Normal Bullet Element: Fire PWR 1.75 ACC 75% CRI 10%

Outdated Lunatic Gun

The Focus Shot of Reisen Udongein Inaba from the world of eternal night (a Touhou LW original). She fires out multiple waves of bullets in all directions. It is a mystery as to how she shoots these bullets, as she does not carry any sort of gun. Perhaps the bullets are fired with her ability, and equipment like guns are merely items that assist this process. However, there is also the possibility that she possesses a tiny device that fires bullets through a completely different mechanic to firearms.

	All	Outdated Lunatic Bullet	x5	Yin
Normal Bullet Element: None PWR 4.53 ACC 90% CRI 3% [Self][Agility△]50% chance to apply Agility 1 level(s) UP buff to Self (3 turn(s)).
	All	Outdated Strong Lunatic Bullet	x2	Yin	1
Normal Bullet Element: Fire PWR 4.03 ACC 85% CRI 5% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer] [Slice]DMG scales with ATK in addition to 40% of Agility [Self][Agility△]100% chance to apply Agility 1 level(s) UP buff to Self (3 turn(s)).
	All	Outdated Mad Lunatic Bullet	x2	Yin	2
Normal Bullet Element: Moon PWR 4.56 ACC 80% CRI 7% [Incident Resolver-Killer] [Moon Emissary-Killer] [All Targets][Charged]25% chance to inflict Barrier Status: Paralyze to All Targets (3 turn(s)).
	All	Outdated Lunatic Shot Bullet	x2	Yang	2
Normal Bullet Element: None PWR 4.91 ACC 80% CRI 7% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer] [Slice]DMG scales with ATK in addition to 40% of Agility
	All	Outdated Lunatic Combustion Bullet	x2	Yin	3
Normal Bullet Element: Fire PWR 5.45 ACC 75% CRI 10% [Incident Resolver-Killer] [Moon Emissary-Killer]
	All	Outdated Heavy Caliber Lunatic Bullet	x2	Yang	3
Normal Bullet Element: None PWR 5.82 ACC 75% CRI 10%

Character Spell Cards

Available

Limit Break 1

Limit Break 2

Limit Break 3

Spread Sign: Moon of Truth (Invisible Full Moon)

A Spell Card of Reisen Udongein Inaba from the world of eternal night. She shoots out round invisible bullets reminiscent of the moon. On days when it is a new moon where no trace of the moon can be seen in the sky, the other side of the moon is a full moon as it basks in the light of the sun. The waxing and waning of the moon are equal and opposite, like the crest and trough of a wave.

*Pre- and Post- effects assume max level. Effects per level can be viewed here.

Pre-Attack Spell Card Effects

Target's Agility 3 level(s) DOWN (3 turns).

Target's CRIT Evasion 2 level(s) DOWN (3 turns).

Post-Attack Spell Card Effects

None

	Solo	New Moon Bullet	x20	Yin
Light Bullet Element: Moon PWR 4.19 ACC 90% CRI 3% [Shrine Maiden-Killer] [Magician-Killer] [Maid-Killer] [Half-Human Half-Phantom-Killer] [Sage-Killer] [Doll-Killer] [Vampire-Killer] [Ghost-Killer] [Slice]DMG scales with ATK in addition to 80% of Agility
	Solo	Hidden Moon Bullet	x3	Yin	1
Light Bullet Element: Moon PWR 7.74 ACC 85% CRI 5% [Shrine Maiden-Killer] [Magician-Killer] [Maid-Killer] [Half-Human Half-Phantom-Killer] [Slice]DMG scales with ATK in addition to 80% of Agility
	Solo	Dark Moon Bullet	x3	Yin	1
Light Bullet Element: Moon PWR 7.1 ACC 85% CRI 5% [Sage-Killer] [Doll-Killer] [Vampire-Killer] [Ghost-Killer] [Slice]DMG scales with ATK in addition to 90% of Agility
	Solo	Invisible Moon Bullet	x2	Yang	2
Light Bullet Element: Water PWR 10.09 ACC 80% CRI 7% [Incineration]Breaks target's Barrier with Barrier Status: Burn. [Melting]Breaks target's Barrier with Barrier Status: Freeze.
	Solo	Waxing Moon Bullet	x1	Yang	2
Light Bullet Element: Water PWR 18.17 ACC 80% CRI 7% [Discharged]Breaks target's Barrier with Barrier Status: Paralyze. [Toxic]Breaks target's Barrier with Barrier Status: Poison. [Flash]Break's target's Barrier with Barrier Status: Blind.
	Solo	Crescent Moon Bullet	x1	Yang	3
Light Bullet Element: Water PWR 16.76 ACC 75% CRI 10%

Lunar Eyes: Moon Rabbit's Remote Mesmerism (Tele-Mesmerism)

A Spell Card of Reisen Udongein Inaba from the world of eternal night. The bullets periodically shift then continue on in this strange attack. There is a theory called mesmerism or animal magnetism, which states that animals possess an unknown force. According to this theory, it is possible to purposefully affect the ebb and flow of this force to control the body, which apparently gave rise to the idea of hypnotism. The moon rabbits are connected to each other with some sort of telepathic communication. So if they could cooperate with each other from afar, they might be capable of producing an equally powerful form of hypnosis.

*Pre- and Post- effects assume max level. Effects per level can be viewed here.

Pre-Attack Spell Card Effects

Party's Agility 3 level(s) UP (3 turns).

Post-Attack Spell Card Effects

Inflicts 2 layer(s) of Barrier Status: Blind to target (3 turns).

	Solo	Moon Rabbit Hypnosis Bullet	x18	Yin
Missile Bullet Element: Moon PWR 5.18 ACC 90% CRI 3% [Slice]DMG scales with ATK in addition to 70% of Agility
	Solo	Group Hypnosis Bullet	x4	Yin	1
Missile Bullet Element: Moon PWR 5.81 ACC 85% CRI 5% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer]
	Solo	Remote Hypnosis Bullet	x4	Yin	1
Missile Bullet Element: Moon PWR 4.84 ACC 85% CRI 5% [Incident Resolver-Killer] [Moon Emissary-Killer] [Slice]DMG scales with ATK in addition to 80% of Agility
	Solo	Artificial Hypnosis Bullet	x3	Yang	1
Missile Bullet Element: Metal PWR 5.16 ACC 85% CRI 5% [Target][Accuracy▼]100% chance to apply Accuracy 1 level(s) DOWN debuff to Target (3 turn(s)).
	Solo	Instant Hypnosis Bullet	x2	Yang	2
Missile Bullet Element: Metal PWR 6.06 ACC 80% CRI 7% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer] [Slice]DMG scales with ATK in addition to 80% of Agility
	Solo	Animal Magnetism Bullet	x1	Yang	3
Missile Bullet Element: Metal PWR 8.38 ACC 75% CRI 10% [Incident Resolver-Killer] [Moon Emissary-Killer]

Stare of the Hazy Phantom Moon Remix (Lunatic Red Eyes Remix)

The Last Word of Reisen Udongein Inaba from the world of eternal night (a Touhou LW original). She projects a Lunatic Red Eye from each of her own two eyes in this attack. She has two eyes, so it is certainly possible that she could be capable of such an attack, but it is not easy or common to move each eye independent of the other. Thus, this Last Word probably requires a significant level of strain and sacrifice, resulting in a corresponding level of lunacy imbued into the attack. It is still unknown why this Reisen and the rest of Eientei have not ended the incident in their world, but this Last Word indicates that their decision has come with a heavy burden.

*Pre- and Post- effects assume max level. Effects per level can be viewed here.

Pre-Attack Spell Card Effects

Own Yin ATK 4 level(s) UP (1 turn).

Inflicts 2 layer(s) of Barrier Status: Paralyze to self (3 turns).

Post-Attack Spell Card Effects

None

	All	Stare of the Hazy Phantom Moon Bullet	x20	Yin
Light Bullet Element: Moon PWR 7.77 ACC 90% CRI 3% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer] [Incident Resolver-Killer] [Moon Emissary-Killer] [Slice]DMG scales with ATK in addition to 100% of Agility
	All	Lunatic Left Eye Bullet	x5	Yin	1
Light Bullet Element: Moon PWR 7.74 ACC 85% CRI 5% [Shrine Maiden-Killer] [Magician-Killer] [Maid-Killer] [Half-Human Half-Phantom-Killer] [Slice]DMG scales with ATK in addition to 120% of Agility
	All	Lunatic Right Eye Bullet	x4	Yin	1
Light Bullet Element: Moon PWR 8.07 ACC 85% CRI 5% [Slice]DMG scales with ATK in addition to 140% of Agility
	All	Lunatic Eyes Bullet	x3	Yin	1
Light Bullet Element: Sun PWR 8.61 ACC 85% CRI 5% [Sage-Killer] [Doll-Killer] [Vampire-Killer] [Ghost-Killer]
	All	Lunatic Red Eyes Bullet	x2	Yin	2
Light Bullet Element: Sun PWR 10.09 ACC 80% CRI 7% [Hakurei Shrine-Killer] [Forest of Magic-Killer] [Scarlet Devil Mansion-Killer] [Hakugyokurou-Killer]
	All	Lunatic Pupils Bullet	x2	Yin	3
Light Bullet Element: Sun PWR 6.98 ACC 75% CRI 10% [Incident Resolver-Killer] [Moon Emissary-Killer] [Flash]Break's target's Barrier with Barrier Status: Blind.

Character Ability

Capable of manipulating madness

Expand

The ability of Reisen Udongein Inaba from the world of eternal night. It is essentially the same as our version of Reisen's ability. However, this Reisen may be involved in prolonging the Eternal Night Incident. The main four personnel of Eientei: Reisen, Tewi, Kaguya, and Eirin, work unnaturally well together even when compared to the other powers in Gensokyo. All four of them are exceptionally skilled at concealment. Reisen can manipulate waves to avoid detection from others. Tewi knows every inch of the Bamboo Forest of the Lost and doesn't let any intruders reach Eientei. Kaguya hides Eientei from history. And Eirin sealed the Earth with a false moon. Even though they all vary slightly in terms of status, disposition, species, and intelligence, they excel at working together for a shared objective. It appears that Reisen's true ability is to manipulate waves and that manipulating madness is only one aspect of this power. This ability is extremely versatile, as anything that can be represented as a wave can be manipulated. Reisen's ability may, in fact, be all-powerful if Louis de Broglie's concept of matter waves is taken into account, but it is unknown how much Reisen actually understands her own ability. The dwellers of Eientei of this world have not yet reached the conclusion that the existence of Gensokyo's barrier is enough to isolate them from the envoys of the moon. There have been a few instances where beings from the moon have entered Gensokyo: - When Reisen Udongein Inaba fled from the moon. (Reisen might have used her ability to achieve this.) - When Toyohime came and tied Yukari up. (Toyohime might have used her ability to achieve this.) - When the Eagle Ravi were sent to investigate Gensokyo. (They might have come through the Dream World.) Perhaps a hint relating to why this incident has been prolonged could be found by investigating these instances.

For every layer of Barrier Status: Paralyze or Blind, Agility, Accuracy, and Evasion 1 level UP.

DMG to resisted elements 20% UP.

Character Skills

Physical Waves Lvl 10

CD 3

Inflicts 2 layer(s) of Barrier Status: Paralyze to self (3 turns).

Own Yin ATK 2 level(s) UP (2 turns).

Info

She manipulates the cycle of physical biorhythms. It is apparently meant to be on a 23-day cycle.

Skill Level		1	2	3	4	5	6	7	8	9	10
Barrier Paralyze
	Value	1	1	1	1	1	1	1	1	1	2
	Rate	0	10	20	30	40	50	60	70	80	0
	Add	0	1	1	1	1	1	1	1	1	0
Yin Attack Level Up
	Value	1	1	1	1	1	1	1	1	1	2
	Rate	0	10	20	30	40	50	60	70	80	0
	Add	0	1	1	1	1	1	1	1	1	0
CD		3	3	3	3	3	3	3	3	3	3

Emotional Waves Lvl 10

CD 5

Inflicts 2 layer(s) of Barrier Status: Blind to self (3 turns).

Own Yin ATK 3 level(s) UP (2 turns).

Info

She manipulates the cycle of emotional biorhythms. It is apparently meant to be on a 28-day cycle.

Skill Level		1	2	3	4	5	6	7	8	9	10
Barrier Blind
	Value	1	1	1	1	1	1	1	1	1	2
	Rate	0	10	20	30	40	50	60	70	80	0
	Add	0	1	1	1	1	1	1	1	1	0
Yin Attack Level Up
	Value	2	2	2	2	2	2	2	2	2	3
	Rate	0	10	20	30	40	50	60	70	80	0
	Add	0	1	1	1	1	1	1	1	1	0
CD		5	5	5	5	5	5	5	5	5	5

Intellectual Waves Lvl 10

CD 4

Own Spirit Power 1.00 UP.

Party's Agility 2 level(s) UP (3 turns). [Additional effect +1 with success rate 80%.]

Party's Evasion 2 level(s) UP (3 turns). [Additional effect +1 with success rate 80%.]

Info

She manipulates the cycle of intellectual biorhythms. It is apparently meant to be on a 33-day cycle.

Skill Level		1	2	3	4	5	6	7	8	9	10
Spirit Power Up
	Value	0.5	0.55	0.6	0.65	0.7	0.75	0.8	0.85	0.9	1
	Rate	0	0	0	0	0	0	0	0	0	0
	Add	1	1	1	1	1	1	1	1	1	0
Agility Level Up
	Value	2	2	2	2	2	2	2	2	2	2
	Rate	0	10	20	30	40	50	60	70	80	80
	Add	0	1	1	1	1	1	1	1	1	1
Evasion Level Up
	Value	2	2	2	2	2	2	2	2	2	2
	Rate	0	10	20	30	40	50	60	70	80	80
	Add	0	1	1	1	1	1	1	1	1	1
CD		4	4	4	4	4	4	4	4	4	4

Character Characteristics

Outdated Bulletproof Armor

When attacked, DMG from Normal Bullet 30% DOWN. [Success rate 100%.]

Outdated Shield Generator

When turn starts, adds 1 layer to own Barrier. [Success rate 30%.]

Outdated Accelerator

After being attacked, own Agility 1 level UP (3 turns). [Success rate 70%.]

Character Change Effect

Speed Link

When switching places with a rear-guard unit, other unit's Agility, Accuracy, & Evasion UP (3 turns).
When switching places with a front-guard unit, inherits part of other unit's Agility, Accuracy, & Evasion buffs (3 turns).

Upgrade Costs

Rank	Coins	Materials
0 -> 1	1000	x10 x20 x10 x10 x20 x10
1 -> 2	2,000	x10 x10 x20 x20 x10 x10
2 -> 3	5,000	x20 x20 x20 x20 x20 x20
3 -> 4	10,000	x20 x20 x30 x30 x20 x20
4 -> 5	15,000	x30 x30 x30 x30 x30 x30

Character Analysis

A8 Reisen Udongein Inaba was released on January 21st, 2022 in "Festival Prayer: Eternal Red Eyes & Flower Reporter!". For more up-to-date analysis, be sure to visit the Official Discord Server.

Reisen Undongein Inaba (Eternal) is an alternate version of the normal Reisen Udongein Inaba that we all know, that takes place in the middle of the incident and original game that she appears in, Imperishable Night. Similarly to characters like Scarlet Reimu, Reisen is just in the crux of her own character arc as she appears to us here. In Imperishable Night, Reimu Hakurei needs to get through Reisen after discovering that she was a leading cause to the disappearance of the moon. Reisen puts up quite a fight here and that’s shown in Touhou LostWord.

This new, fancy version of Reisen is essentially an upgraded version. She hits pretty hard and part of that has to do with her ability. This ability increases the damage dealt to enemies weak against the element she is using by 20%, and she gets a level of Speed, Accuracy, and Dodge for every stack of Electrified, and Darkness on her. As such, her kit seems to revolve around the idea of stacking anomalies and buffs.

For farming, her ability to rack up damage quickly in such a short amount of turns works wonders for her AoE Last Word, Stare of the Hazy Phantom Moon Remix (Lunatic Red Eyes Remix). Her powerful Slice scaling also allows for her to rack up even more damage, capitalizing her ability to buff her own speed. In addition, because her ability targets elemental disadvantages, she is excellent for notoriously hard Story Card farms.

Solo Stage Farms: 3-6-3, 3-11-1, Future Story Card Stage

For harder fights, Eternal Reisen allows herself the time to stack up even more damage for herself via her Spell Cards. More specifically, her second Spell Card, Lunar Eyes: Moon Rabbit's Remote Mesmerism (Tele-Mesmerism), increases all allies’ speed up by 3 for 3 whole turns. This coincides well with her ability since that will all transfer into damage assuming what you’re hitting is weak against the elements she is using. Her first Spell Card, Spread Sign: Moon of Truth (Invisible Full Moon), isn’t nearly as helpful in terms of utility, but makes up for that with its ability to break every anomaly at only P2. The main downside to both Spell Cards is that they are solo-targeting.

For breaks, Eternal Reisen boasts a solid chunk of Moon breaks in addition to Water, Fire, Metal, and Sun. On her Shots she does have P1 breaks for both Moon and Fire, however, these are still a far cry from P0 though they are still repeatable given the right amount of P. This doesn’t make her bad for it, however, as Moon breaking is already rather scarce and she is easily one of the better friends for the job.

Overall, Eternal Reisen has an extremely powerful kit that allows her to rack up a ton of damage in both a short amount of time and in a way that’s easy to understand, making her kit rather simple.

The Slice scaling on Reisen's attacks are as follows:

Outdated Mind Wave: 0%/0%/0%/40%/0%/0%
Outdated Lunatic Gun: 0/40%/0%/0%/0%/0%
Spread Sign: Moon of Truth (Invisible Full Moon): 80%/80%/90%/0%/0%/0%
Lunar Eyes: Moon Rabbit's Remote Mesmerism (Tele-Mesmerism): 70%/0%/80%/0%/80%/0%
Stare of the Hazy Phantom Moon Remix (Lunatic Red Eyes Remix): 100%/120%/140%/0%/0%/0%

Story Card Recommendations

(Card recommendations last updated on April 30, 2023)

Spell Card

The Witch of Scarlet Dreams

Overwhelming Firepower

Midnight Tea

If you’re using her Spell Cards chances are you’re most likely using it to boost her speed, gain more P, or both. The Witch of Scarlet Dreams and Midnight Tea both fulfill this role. If you’re using her Spell Cards for the purpose of doing damage then any Story Card containing Yin ATK up will fulfill this role fine.

Last Word

Puppeteer and Necromancer

Reisen's Last Word is comprised solely of Light Bullets, making Puppeteer and Necromancer's 50% Light Bullet Power UP unquestionably the best card for this slot. Other options include Patron Saint of Learning, as provides two crucial buffs to Reisen's Last Word: Light Bullet and Moon Power UP. The damage will not be as optimized as the 3-11-1 card, but she still benefits from both Light Bullet Power UP and Moon Power UP from the card's passives.

Character Skill Level Up Recommendations

Eternal Reisen’s skills are already very good on their own since they all involve adding more and more damage to her arsenal. It’s recommended to start with Emotional Waves and move on to Physical Waves, before lastly, maxing out Intellectual Waves. The main thing to note here is that she doesn’t necessarily need the extra 1 P from her third skill due to her front-loaded Spell Cards.

Character Strengths

+ Very high damage for both hard levels and farming
+ Solid Moon breaks
+ Great team-wide Agility buffs
+ Spell Card 1 breaks every anomaly at P2

Character Weaknesses

- Doesn’t scale nearly as well as other top tier units for longer fights

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Reisen Udongein Inaba (Eternal)

Stats

Races

Element Type Chart

Character Shots

Character Spell Cards

Character Ability

Character Skills

Character Characteristics

Character Change Effect

Upgrade Costs

Character Analysis

Story Card Recommendations

Spell Card

Last Word

Character Skill Level Up Recommendations

Character Strengths

Character Weaknesses

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