1 - 20 of 33 Works by SergeantHopeless
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Byleth's Big Fat Mercenary Engagement Party by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
18 Jan 2026
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Summary
“Seteth, come sit for a minute. Sit, sit.” The man topped off Seteth’s untouched cup in his hand, causing liquid to spill out.
“…Thank you,” Seteth said, unsure of what else to say.
“Now, you are family,” the man wheezed. The alcohol on his breath was far stronger than the beer from the keg. “All of my life…I’ve had a lump at the back of my neck, right here...”A just-for-fun FE3H x My Big Fat Greek Wedding crossover where Byleth introduces her fiancé to Jeralt's Mercenaries.
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The Goddess and the Saint by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
03 Jan 2026
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What if Byleth transformed immediately after receiving Sitri's crest stone when she was born, and she was raised by Rhea instead of Jeralt? What if Seteth didn't come to Garreg Mach until after Flayn woke up? What if Jeralt was the new professor? Oh — and what if Byleth and Seteth were forced to get married at the beginning of the story?
An AU longfic about a fledgling goddess and a lonely saint.
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No Contest by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
28 May 2024
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What if Byleth was a UFC fighter, and Seteth was her new trainer?
(In other words, my eyes were opened to the glorious possibilities of a UFC AU fic and I have not known peace since)
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She's perfect in every way...EXCEPT by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
23 Jan 2024
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Summary
"...But now, as his beloved sets a bowl of what he assumes is supposed to be fish stew before him, he begins to think that maybe, possibly, there had been some credence to those rumors after all."
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Better This Way by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
19 Dec 2023
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Summary
After the war, Seteth watched from the shadows as Byleth and Dimitri exchanged their proposals. Decades later, at King Dimitri's funeral, he finds her again.
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Teatime Confession by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
03 Oct 2023
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Summary
Happy and secure in their relationship, Seteth asks Byleth what made her fall in love with him. Byleth knows the answer, but she's too embarrassed to say it out loud.
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Everything I Never Knew I Wanted by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
06 Sep 2023
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Summary
In their first days of new parenthood, Byleth muses on the new feelings she’s discovered after the birth of her and Seteth's firstborn.
Because I felt like “Are You Happy?” needed a sequel.
Series
- Part 2 of Setleth Babyfics
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Rules for Dating My Sister: Don't by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
07 Aug 2023
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Summary
Seteth and Flayn are siblings with a wide age gap. Seteth is a classically overprotective older brother, to the point of wearing a ridiculous black tee shirt every time he picks her up from high school that says: “Rules for dating my sister: Don’t”. This causes major issues for Flayn’s love life, and Flayn is more than happy to point out his hypocrisy when Seteth brings home a girlfriend.
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Bite-sized Setleth by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
30 Aug 2022
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Summary
A collection of drabble-ish one-shots featuring our favorite Nabatean lovebirds.
1 – Dust
2 – "We Can't"
3 - Lipstick -
Are you happy? by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
28 Jul 2022
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Summary
Suspected of being unwell, Byleth gets dragged to the infirmary. However, Manuela's diagnosis is the *last* thing she expected. And now she's left to grapple with a critical question: how is she going to tell Seteth?
Series
- Part 1 of Setleth Babyfics
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Just Like a Novel by SergeantHopeless for SakuraChiyo
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
09 Jun 2022
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Summary
The resistance finds themselves sheltering at an inn on a rainy night. Of course, the inn is overcrowded, and of course this means our beloved characters need to get creative with the room assignments. Flayn is assigned to room with Dorothea, but ever the wingwoman, Dorothea has other plans...and those plans have to do with a certain Ferdinand von Aegir.
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From Under His Wing by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
23 Apr 2022
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Summary
Seteth is willing to do anything for Flayn, but when Ferdinand comes to him to ask for his blessing on his marriage to Flayn, Seteth finds himself at a crossroads. How far is he willing to go, if it means ensuring his daughter's happiness?
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Reverse Card by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
10 Apr 2022
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Summary
What if Sitri never died, and Byleth was raised at Garreg Mach? What if Seteth was the one who Rhea decided to hire as a professor? And what if Byleth didn’t trust Seteth at all? (In other words: this is an AU where Byleth and Seteth switch places, yet still manage to fall in love.)
FINISHED!
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Sword & Tell by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
23 Mar 2022
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Summary
Felix invites Annette to his room to show her his swords. Misunderstanding ensues.
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Open Mouth, Insert Foot by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
16 Mar 2022
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Summary
While hosting a lance seminar, our dear assistant to the archbishop Seteth accidentally gives the most innuendo-laced lecture Garreg Mach has ever seen.
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Cupid's Arrow by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
15 Feb 2022
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Summary
Seteth realizes that he is in love with Byleth at the worst possible time, and there are consequences.
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“Are You Dating Lady Rhea?” by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
09 Feb 2022
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Summary
Claude and Hilda have a bet. They enlist Byleth to determine which of them is right.
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Holy Lips by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
03 Jan 2022
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Summary
On the night before the resistance army is supposed to leave for another battle, Seteth catches Byleth in the cathedral in a...compromising situation. Afterward, both must deal with the consequences of what they found.
Written for Setleth Week 2021. Day 4 Prompt: Holy.
Series
- Part 4 of SergeantHopeless Setleth Week 2021
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In the Warmth of the Morning Sun by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
02 Jan 2022
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Summary
In many ways, Nabateans are very similar to humans. However, there are also several key differences. Byleth learns about another one when she catches her new husband in the middle of an unusual morning ritual.
Written for Setleth Week 2021. Day 7 Prompt: Warmth.
Series
- Part 7 of SergeantHopeless Setleth Week 2021
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Words of Tenderness by SergeantHopeless
Fandoms: Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses
01 Jan 2022
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Summary
Byleth wrestles with the meaning of one very important word as her relationship with Seteth deepens.
Written for Setleth Week 2021. Day 6 Prompt: Tender.
Series
- Part 6 of SergeantHopeless Setleth Week 2021