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FETH Flayn.png
Artwork of Flayn from Three Houses.

Seteth's younger sister




July 12


151 cm (~4'11.5")

Starting class


Voiced by

Flayn (pronounced /fleɪn/[key]; Japanese: フレン Flayn) is a character appearing in Fire Emblem: Three Houses. While she claims to be a young girl who is the younger sister of Seteth, assistant to the Archbishop Rhea, her true identity is Cethleann (pronounced /sɛθ'lin/[key]), one of the saints of the Church of Seiros, who has recently reawakened.


Flayn, born Cethleann, was one of the Nabateans living in Zanado alongside her father Cichol and the goddess Sothis. When the human bandit Nemesis massacred the Nabateans to create the Heroes' Relics, Cethleann took up arms against him and fought him in battle. Cethleann was grievously injured fighting Nemesis, and spent the next several centuries in a coma. She awoke in 1179, by which point Cichol had become a high-ranking administrator for the Church of Seiros under the alias Seteth. Cethleann took the alias Flayn and took up residence at Garreg Mach Monastery, pretending to be Seteth's younger sister.

In 1180, Flayn is abducted by a masked knight known as the Death Knight. She is rescued by the mercenary turned professor Byleth, and joins their class at the Officers Academy out of gratitude and to protect herself. When Princess Edelgard von Hresvelg of Adrestia declares war on the Church, Flayn fights in the Battle of Garreg Mach on the Church's side, but is defeated. Even if Byleth defects to the Empire, Flayn abandons them to remain with the Church.

On all routes other than Crimson Flower, Flayn returns to the monastery on the day of the millennium festival, reunites with Byleth, and accompanies them throughout the war with the Empire. On the Crimson Flower route, after the fall of the Leicester Alliance, Flayn aids Seteth, non-recruited Shamir and Alois, and the Knights of Seiros in a counterattack on Garreg Mach. She is defeated, and can either be killed outright or spared along with her father and driven back into hiding.

Fire Emblem: Three Houses


Flayn is a playable character automatically recruited in Chapter 7. On the Black Eagles route, she will desert the party in Chapter 12 and become a recurring enemy should Byleth side with Edelgard.

Starting stats and growth rates


Small portrait flayn fe16.png
Ma ns01 priest flayn playable.gif Priest
Level 11
Movement 4
Crest Crest of Cethleann
Recruitment: Chapter 7, automatically at the start if the player accepted her offer in the previous chapter. Leaves party at the start of Chapter 12 on the Black Eagles route if the player stays with Edelgard, and cannot be re-recruited.

Base Stats Growth Rates Max Stats

Inventory Abilities
Training Lance
Intermediate Seal
Lily's Poise
White Magic Heal +5
Lance Prowess Lv 2
Faith Lv 3
Combat arts Spells Battalion
Tempest Lance
Seiros Sacred Monks Lv 1
Resonant White Magic
Skill Levels
Swords Lances Axes Bows Brawling Reason Faith Authority Heavy Armor Riding Flying
E E+ E E E E C+ E E E D
-- Strength -- -- -- Budding Talent Strength -- Weakness Weakness --

Enemy - Black Eagles Chapter 12

Normal Hard Maddening

Enemy - Crimson Flower Chapter 15

Normal Hard Maddening

Growth rates when reclassed

Main article: Flayn/Stats


Ability Learned at
Is ns01 skill team buff.png Lily's Poise Personal ability, innate and unremovable
Is ns01 sword prowess lv 1.png Sword Prowess Swords E+; replaced with higher levels at Swords D+, C+, B+, and A+
Is ns01 combat art sword.png Wrath Strike Swords D
Is ns01 combat art sword.png Grounder Swords C
Is ns01 axebreaker.png Axebreaker Swords B
Is ns01 sword crit +10.png Sword Crit +10 Swords S
Is ns01 swordfaire.png Swordfaire Swords S+
Is ns01 lance prowess lv 2.png Lance Prowess Innate; replaced with higher levels at Lances C+, B+, and A+
Is ns01 combat art lance.png Tempest Lance Innate
Is ns01 combat art lance.png Knightkneeler Innate
Is ns01 combat art lance.png Hit and Run Lances C+
Is ns01 swordbreaker.png Swordbreaker Lances B
Is ns01 combat art lance.png Frozen Lance Lances A
Is ns01 lance crit +10.png Lance Crit +10 Lances S
Is ns01 lancefaire.png Lancefaire Lances S+
Is ns01 axe prowess lv 1.png Axe Prowess Axes E+; replaced with higher levels at Axes D+, C+, B+, and A+
Is ns01 combat art axe.png Smash Axes D
Is ns01 combat art axe.png Helm Splitter Axes C
Is ns01 lancebreaker.png Lancebreaker Axes B
Is ns01 axe crit +10.png Axe Crit +10 Axes S
Is ns01 axefaire.png Axefaire Axes S+
Is ns01 bow prowess lv 1.png Bow Prowess Bows E+; replaced with higher levels at Bows D+, C+, B+, and A+
Is ns01 combat art bow.png Curved Shot Bows D
Is ns01 close counter.png Close Counter Bows C
Is ns01 bow crit +10.png Bow Crit +10 Bows S
Is ns01 bowfaire.png Bowfaire Bows S+
Is ns01 brawling prowess lv 1.png Brawling Prowess Brawling E+; replaced with higher levels at Brawling D+, C+, B+, and A+
Is ns01 combat art brawling.png Fading Blow Brawling D
Is ns01 combat art brawling.png Rushing Blow Brawling C
Is ns01 combat art.png Healing Focus Brawling B
Is ns01 brawl crit +10.png Brawl Crit +10 Brawling S
Is ns01 fistfaire.png Fistfaire Brawling S+
Is ns01 seal magic.png Seal Magic Budding Talent: Reason
Is ns01 reason lv 1.png Reason Reason E+; replaced with higher levels at Reason D+, C+, B+, and A+
Is ns01 black magic range +1.png Black Magic Range +1 Reason S
Is ns01 black tomefaire.png Black Tomefaire Reason S+
Is ns01 faith lv 3.png Faith Innate; replaced with higher levels at Faith B+ and A+
Is ns01 white magic range +1.png White Magic Range +1 Faith S
Is ns01 white tomefaire.png White Tomefaire Faith S+
Is ns01 authority lv 1.png Authority Authority E+; replaced with higher levels at Authority D+, C+, B+, and A+
Is ns01 rally luck.png Rally Luck Authority D
Is ns01 battalion renewal.png Battalion Renewal Authority C
Is ns01 defensive tactics.png Defensive Tactics Authority B
Is ns01 offensive tactics.png Offensive Tactics Authority S+
Is ns01 weight -3.png Weight -3 Heavy Armor C
Is ns01 combat art.png Smite Heavy Armor B
Is ns01 weight -5.png Weight -5 Heavy Armor A
Is ns01 armored effect null.png Armored Effect Null Heavy Armor S+
Is ns01 dexterity +4.png Dexterity +4 Riding C
Is ns01 movement +1.png Movement +1 Riding A+
Is ns01 cavalry effect null.png Cavalry Effect Null Riding S+
Is ns01 alert stance.png Alert Stance Flying B
Is ns01 alert stance+.png Alert Stance+ Flying A+
Is ns01 flying effect null.png Flying Effect Null Flying S+
The above ability list does not include class abilities, or abilities and combat arts that are granted by items.

Spell list

Spell Learned at
Wind Reason D
Fire Reason D+
Cutting Gale Reason C
Excalibur Reason A
Heal Innate
Nosferatu Innate
Restore Innate
Rescue Faith B
Fortify Faith A

Personality and character

This section has been marked as a stub. Please help improve the page by adding information.

Flayn is a gentle girl who interacts with others openly, but her curiosity can make her act rashly.


Main article: Flayn/Supports


Flayn, Slumbering Princess
Flayn disappeared soon after the war, and over time it was all but forgotten that she had ever existed. Many long years later, however, a young woman resurfaced in a completely transformed Fódlan. When she looked to the man who stood beside her, she wondered if it would be all right, in this new era, to call him Father.

Flayn, Slumbering Princess (if Seteth died)
Flayn disappeared soon after the war, and after a time, proof of her very existence faded from memory. Many years later, a young woman appeared at the monastery, which had been restored to its former glory. Speaking to no one in particular, it is said that she gazed at the entrance and reverently whispered, "I am home."

Seteth, Heir of Purpose and Flayn, Slumbering Princess
While Flayn disappeared soon after the war, Seteth stayed at the monastery and worked to restore the authority of the Church of Seiros. Doing away with his old strictness, he adopted a tolerant stance toward all, and encouraged his followers to do the same. When he was satisfied that the message was received, he vanished from the monastery. Several centuries later, a man and a woman in ancient attire emerged to a Fódlan that had drastically changed. When she asked the man beside her if it would be all right in this new era to call him "Father," he said that perhaps it would be better to remain on the safe side.

Claude, King of Unification & Flayn, Slumbering Princess
Entrusting the future of Fódlan to his friends, Claude left for Almyra to reclaim his place as heir to the throne. Several years later, when he became king, he took initial steps to open diplomatic relations with Fódlan, and asked Garreg Mach for aid. During this time, he was reunited with Flayn, who had been helping Seteth run the church. She agreed to help, and as they worked together to secure friendly relations between their respective regions, they fell deeply in love. It is said that Seteth never learned of their relationship.

Linhardt, Sleepy Crest Scholar & Flayn, Slumbering Princess (Silver Snow and Verdant Wind)
Immediately after the war, Flayn disappeared from Garreg Mach. At the same time, Linhardt also mysteriously abandoned his claim to House Hevring, and also vanished. It was suspected, among those who knew them, that they had eloped, although no one seemed to know just where they went. Over a decade later, well after the Officers Academy had been rebuilt, something strange happened. A sleepy young girl with antiquated clothing and the Major Crest of Cethleann enrolled. Over the next two years, a young boy and girl with the same Crest also enrolled. Though Crest scholars deduced they must be siblings, the truth of their lineage was never definitely proven.

Raphael, Beast of Leicester & Flayn, Slumbering Princess
Raphael returned to his hometown, where he served his liege lord as a knight for a time. Later, he gave it up to help manage the inn that his family had opened up during his time away. Away from the battlefield and able to eat as much as he pleased, he eventually began to grow soft. It was around that time that Flayn, who had also neglected her training, came to visit. The two helped motivate one another, and together they embarked on a new exercise routine. Thereafter, it is said that their energetic shouts and cries of exertion could be heard throughout the village at any time of day.

Ferdinand, Noblest of Nobles & Flayn, Slumbering Princess
Ferdinand married Flayn just after becoming the new Duke Aegir, and the pair wasted no time getting to work on the rebuilding effort. While Ferdinand handled administrative matters, Flayn walked more directly among the people, seeing to their needs. Their teamwork and complementary skills led to rapid recovery and growth for the region, but it is said that what inspired the people most of all was the genuine intimacy and affection between the ruling couple.

Byleth,Guardian Of Order & Flayn,Slumbering Princess:Byleth announced his marriage to Flayn shortly after being named archbishop of the Church of Seiros. Flayn chose not to get involved in management of the church, instead focusing on healing those who had been hurt by the war. Her compassionate demeanor led many to speculate that she was "the second coming of Saint Cethleann." When Fódlan was finally restored, the archbishop named a successor, and the couple retired to a royal villa on the Rhodos Coast of western Fódlan. They spent their remaining years there in peace, fishing a great deal. It is said that no matter their age, they always retained a youthful appearance.


Battle quotes

You shall not pass! I will protect Garreg Mach!
— Flayn, as an enemy in Black Eagles Chapter 12.
Professor, why?! Do you not see the cruelty of this?
— Flayn, as an enemy fighting Byleth in Black Eagles Chapter 12.
This makes me terribly sad, but this is my duty, to which I must be true!
— Flayn, as an enemy in Crimson Flower Chapter 15.
When I heard you were alive, Professor, I was so happy. But now... Now this? How can it be that you fight on that side? I cannot take your life, for I owe you mine, even now. And yet I cannot back away from this fight. When this is over, my brother and I will go into hiding. It is the only way.
— Flayn, as an enemy fighting Byleth in Crimson Flower Chapter 15.
Flayn: So it's you, Death Knight! Remember me?!
Death Knight: You again. Here to lose more blood?
Flayn: Never! You will not lay a hand on me ever again!

— Flayn, fighting the Death Knight in Silver Snow Chapter 17/Verdant Wind Chapter 18/Azure Moon Chapter 20.
Flayn: Edelgard! Please! Release Rhea... Release Fódlan!
Edelgard: If you strike me down, they will return. I cannot permit what you desire. You are a child of the goddess. You must not be allowed power over the people!

— Flayn, fighting Edelgard in Silver Snow Chapter 19/Verdant Wind Chapter 20.
Rhea... How tragic. But there is no time to waste. She must be stopped!
— Flayn, fighting the Immaculate One in Silver Snow Chapter 21.
Leave! Let Mother rest in peace!
— Flayn, fighting any enemy commander in An Ocean View.
The Wind Caller: Ah, that face takes me back in time... You have not changed one bit, Ceth—
Flayn: I ask that you keep quiet, Uncle!
The Wind Caller: Why the rush, Ceth—
Flayn: Shh! Please keep quiet, Uncle!

— Flayn, fighting the Wind Caller in The Sleeping Sand Legend.
The Immovable: Oh! You're here too! I've always wanted to meet you, Ceth—
Flayn: I ask that you keep quiet, Uncle!
The Immovable: What's that? Ceth—
Flayn: Shh! Please keep quiet, Uncle!

— Flayn, fighting the Immovable in Legend of the Lake.

Critical quotes

Prepare yourself!
— Flayn
I'm sorry; it must be done!
— Flayn
If I must!
— Flayn
Stand aside!
— Flayn

Death/retreat quotes

I must call it a day...
— Flayn's retreat quote as a playable character in Part I.
Mother...I will see you soon.
— Flayn's death quote in classic mode as a playable character in Part II.
I am sorry. I must retreat.
— Flayn's retreat quote in casual mode as a playable character in Part II, and in classic mode in Silver Snow.
Flayn: Must protect...Garreg Mach... I must protect...everyone...
Seteth: Retreat while you still can, Flayn! I beg you!
Flayn: Understood... Stay safe, Fa-Brother!

— Flayn's retreat quote as an enemy in Black Eagles Chapter 12.
Farewell, professor. I do not imagine we shall ever meet again.
— Flayn's retreat quote as an enemy if spared in Crimson Flower Chapter 15.
Flayn: Father, please forgive me... I am returning to Mother now...before you do...
Seteth: Flayn! Please, no! No!

— Flayn's death quote as an enemy if killed in Crimson Flower Chapter 15.

Other quotes

Main article: Flayn/Quotes

Other appearances

Fire Emblem Cipher

Flayn is currently featured on four cards in Fire Emblem Cipher.

The below cards' epithets are still in raw, untranslated Japanese; these need translation.
Fire Emblem Cipher data for Flayn
TCGCipher S12-007ST.png 修道院で暮らす乙女, Flayn



"If the flowers within the greenhouse are removed, they will soon wilt and wither... Is that not so? I feel I can empathize with them..."
Attack: 50 Support: 20 Range: 1-2 Deploy Cost: 3
Class: Priest Tier: Advanced Class Change Cost: 2
A Girl's Healing Magic: [Activate] [Tap this unit] [Flip one bond card] Choose 1 non-"Flayn" card with a Deployment Cost of 3 or lower from your Retreat Area, and add it to your hand.
A Sheltered Life: [Always] This unit is immune to destruction as the cost or effect of skills.
Card #S12-007STArtist: Tetsu Kurosawa
TCGCipher B19-040SR.png 好奇心旺盛な乙女, Flayn



"You see, I happen to be quite curious about you, Professor."
Attack: 60 Support: 20 Range: 1-2 Deploy Cost: 4
Class: Bishop Tier: Advanced Class Change Cost: 3
Saintlike Power: [Activate] [Once per turn] [Flip one bond card] Choose other 1 tapped ally. Until the end of your opponent's next turn, that ally gains +20 attack.
Major Crest of Cethleann: [Trigger] When your turn ends, if you have used a Crest Power from your hand 1 or more times in this turn, draw 1 card.
Card #B19-040SRArtist: Fuzichoco
TCGCipher B19-041N.png 純真無垢な女生徒, Flayn



"I am so happy to be part of your class, Professor."
Attack: 10 Support: 20 Range: 1-2 Deploy Cost: 1
Class: Noble Tier: Base Class Change Cost: --
Heal, Light Magic: [Activate] [Tap this unit] [Flip two bond cards] Choose 1 other ally. Choose 1 card with the same unit name as that ally from your Retreat Area, and add it to your hand.
"A beautiful flower for you!": [Trigger] [Once per turn] When your lord is being attacked, until the end of this combat, your lord gains +10 attack.
Is TCGCipher Defend.png Miracle Emblem: [Support] Until the end of this combat, your opponent's attacking unit cannot perform a Critical Hit.
Card #B19-041NArtist: Fuzichoco
TCGCipher P19-014PR.png 大司教補佐の妹, Flayn



"My brother will be pleased!"
Attack: 40 Support: 20 Range: 1-2 Deploy Cost: 2
Class: Noble Tier: Base Class Change Cost: --
Inquisitive Gaze: [Activate] [Once per turn] Look at 1 of your orbs.
Saint-Resembling Face: [Activate] [Tap this unit] Choose 1 other ally. Until the end of the turn, that ally gains +10 attack.
Card #P19-014PRArtist: Iccho Fundoshi
Some card information translation provided by Serenes Forest.
For more detailed strategic information on these cards, see their TCG wiki article on Flayn .


Etymology and other languages


Names, etymology and in other regions
Language Name Definition, etymology and notes
English Flayn
Japanese フレン Flayn
Spanish Flayn As above.
French Flayn As above.
German Flayn As above.
Italian Flayn As above.
Korean 흐렌 Fren
Simplified Chinese 芙莲 Flayn
Traditional Chinese 芙莲 Flayn


Names, etymology and in other regions
Language Name Definition, etymology and notes
English Cethleann From the Irish mythological figure Caitlín, who possessed the power of prophecy and was the wife of Balor.
Japanese セスリーン Cethleann
Spanish Cethleann As above.
French Cethleann As above.
German Cethleann As above.
Italian Cethleann As above.
Korean 세스린 Cethlean
Simplified Chinese 希思琳 Cethleann
Traditional Chinese 希思琳 Cehtleann


External links


Project Characters.png This article is part of Project Characters, a project focused in writing articles for every character present in the Fire Emblem series.
Fire Emblem: Three Houses
Playable characters Black Eagles BernadettaCasparDorotheaEdelgardFerdinandHubertLinhardtPetra
Blue Lions AnnetteAsheDedueDimitriFelixIngridMercedesSylvain
Golden Deer ClaudeHildaIgnatzLeonieLorenzLysitheaMarianneRaphael
Other AloisAnna*BylethCatherineCyrilFlaynGilbertHannemanJeritza*ManuelaSetethShamir
Ashen Wolves* BalthusConstanceHapiYuri
Non-playable characters Duke AegirFlecheIonius IXJeraltJudithLadislavaLambertLord ArundelMonicaNaderRandolphRheaRodrigueSeirosSothisTomas
Bosses AcheronAelfric*BiasBlaiddydCatherineCharonChilonClaudeCorneliaDaphnelDeath KnightDimitriDominicEdelgardFlame EmperorFerdinandFraldariusGautierGloucesterGonerilGwendalHubertThe Immaculate OneThe ImmovableJudithKostasKronyaLadislavaLamineLonatoLord ArundelLorenzMetodeyMiklanMysonNaderNemesisOdessePallardóPittacusRandolphRheaRieganRodrigueSolonThalesWandering BeastThe Wind Caller
Personal weapons and regalia Aegis ShieldAreadbharAsclepiusAthameAxe of UkonvasaraAymrBlutgangCaduceus StaffCirce StaffCrusherFailnaughtFetters of DromiFreikugelThe InexhaustibleLance of RuinLúinOchain ShieldRafail GemScythe of SarielSeiros ShieldSpear of AssalSword of BegaltaSword of MoraltaSword of SeirosSword of the CreatorTathlum BowThunderbrandThyrsusVajra-Mushti
Chapters Part I Prologue: An Inevitable Encounter • 1: Three Houses • 2: Familiar Scenery • 3: Mutiny in the Mist • 4: The Goddess's Rite of Rebirth • 5: Tower of Black Winds • 6: Rumors of a Reaper • 7: Field of the Eagle and Lion • 8: The Flame in the Darkness • 9: The Cause of Sorrow • 10: Where the Goddess Dwells • 11: Throne of Knowledge • 12: To War Black Eagles, if Byleth sides against EdelgardBlue LionsGolden Deer / Outset of a Power StruggleBlack Eagles, if Byleth sides with Edelgard
Part II Silver Snow
Silver Snow
13: Reunion at Dawn • 14: A King Without a Kingdom • 15: Valley of Torment • 16: The Rose-Colored River • 17: The Impregnable Fortress • 18: The Chaos of War • 19: Conclusion of the Crossing Roads • 20: The City Without Light • 21: Following a Dream
Azure Moon
Azure Moon
13: Reunion at Dawn • 14: The Delusional Prince • 15: Valley of Torment • 16: The Rose-Colored River • 17: Blood of the Eagle and Lion • 18: The King's Triumphant Return • 19: The Golden Deer's Plea • 20: The Impregnable Fortress • 21: Our Chosen Paths • 22: Oath of the Dagger
Verdant Wind
Verdant Wind
13: Reunion at Dawn • 14: The Alliance Leader's Ambitions • 15: Valley of Torment • 16: The Rose-Colored River • 17: Blood of the Eagle and Lion • 18: The Golden Scheme • 19: The Chaos of War • 20: Conclusion of the Crossing Roads • 21: The City Without Light • 22: Fódlan's New Dawn
Crimson Flower
Crimson Flower
13: Beyond Escape • 14: The Master Tactician • 15: Tempest of Swords and Shields • 16: Lady of Deceit • 17: Field of Revenge • 18: To the End of a Dream
Paralogues Part I A Cursed Relic*An Ocean ViewBlack Market Scheme*Death TollDividing the WorldFalling Short of HeavenThe ForgottenLand of the Golden DeerOil and WaterRumored NuptialsSword and Shield of SeirosTales of the Red CanyonTrue ChivalryWar for the Weak
Part II Darkness Beneath the EarthEternal GuardianThe Face BeneathForeign Land and SkyForgotten HeroInsurmountableLegend of the LakeRetributionThe Secret Merchant*The Silver MaidenThe Sleeping Sand LegendWeathervanes of Fódlan
Cindered Shadows
(DLC side story)
1: The Fourth House • 2: What Lies Beneath • 3: The Rite of Rising • 4: Danger in the Dark • 5: Betrayal • 6: Return to Me • 7: Wolf Pack
Locations FódlanAbyssAdrestiaFaerghusGarreg Mach MonasteryLeicesterAlmyraBrigidDagdaSreng
Groups, objects and concepts 10 ElitesAshen WolvesBlack EaglesBlue LionsChurch of Seiros (Knights of Seiros) • Crests (Crest Stone) • Divine PulseGolden DeerHeroes' RelicsMonstersThose who slither in the darkTragedy of DuscurWar of Heroes
Related topics Music LibraryName chartPre-release informationUnused content