12 Works by MoonlitPromises
Listing Works
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Equivalent Exchange, Approximately by MoonlitPromises
Fandoms: Fullmetal Alchemist, DuckTales, DarkWing Duck - Fandom
06 Sep 2026
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Summary
Edward Elric is finally old enough to legally drink.
Roy Mustang considers this an excellent reason to celebrate their latest victory.
Several bottles later, they decide the entire garrison deserves a drink too.
Unfortunately, they have run out of alcohol.
Fortunately, Edward Elric is an alchemist.
Unfortunately, Edward Elric is a drunk alchemist.
One incorrectly drawn transmutation circle, one flame-powered homemade distillery, and one catastrophic misunderstanding of dimensional physics later, Roy and Edward find themselves in a city populated entirely by talking ducks.
Naturally, their first conclusion is that someone has been making chimeras.
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Roy and Edward have rules.
They meet after hours. They argue. They fuck. And neither of
them talks about what any of it means.
It is supposed to be simple.
Then one particularly heated argument in Roy’s office turns
into something neither of them can pretend is casual anymore. -
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Summary
Roy Mustang decides that if he is going to pursue Edward Elric, he is going to do it properly.
Edward, unfortunately, does not realize he is being courted.
Everyone else does.
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A minor Misunderstanding by MoonlitPromises
Fandoms: Fullmetal Alchemist - All Media Types
03 Sep 2026
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Summary
Riza Hawkeye asks Edward for a very specific favor: transmute some cotton into a tiny plush version of Colonel Mustang.
Edward agrees.
Unfortunately, Roy sees him carrying it around before Edward can hand it over.
Roy reaches the only logical conclusion.
Edward Elric is obviously hopelessly in love with him.
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Before the World Ends Again by MoonlitPromises
Fandoms: Fullmetal Alchemist - All Media Types
01 Sep 2026
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Summary
The world has already ended.
Edward is fairly certain that means he shouldn’t have to deal with freezing nights, abandoned buildings, hordes of things trying to kill them, and Roy Mustang looking at him like he’s the last good thing left alive.
Unfortunately, the apocalypse has never cared what Edward thinks.
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Edward Elric can handle explosions, automail maintenance, impossible alchemical equations, and Roy Mustang being an insufferable bastard before breakfast. What he cannot handle is Roy looking at him like that and saying two completely ridiculous words. You’re beautiful.
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Roy Mustang needs a date to a military gala.
Unfortunately for Edward Elric, Roy decides that he is the
perfect candidate.
It’s only supposed to be for one night. Smile for the generals,
pretend they actually like each other, and absolutely do not
develop real feelings along the way.
Simple.
Probably. -
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Summary
A relentless storm turns Colonel Mustang’s greatest strength into his greatest weakness. Trapped behind enemy lines with Hawkeye, the Elric brothers, and a dwindling unit, survival depends not on fire, but on strategy, trust, and sacrifice.
Back at headquarters, the rain refuses to stop—and neither do the emotions they’ve buried beneath years of duty. As the line between Colonel and Lieutenant begins to blur, one disastrous mission changes everything.
Three-part Royai story featuring battlefield action, quiet intimacy, humor, and an explicit conclusion.
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Two Worlds, One Very Big Problem by MoonlitPromises
Fandoms: Dragon Ball, One Piece (Anime & Manga)
23 Aug 2026
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Summary
Bulma accidentally breaks reality.
Android 18 has to deal with pirates.
Franky is desperate to run a scan.
Sanji falls in love within three seconds.
And somewhere, the first Saiyan is already approaching.
A Dragon Ball Z × One Piece crossover full of chaos, action, comedy, and a crew that was absolutely not prepared for one another.
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Shattered Alchemy: The Abbey's Claim by MoonlitPromises for Glitter_Bondage
Fandoms: Fullmetal Alchemist - All Media Types
16 Aug 2026
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Summary
!!Disclaimer!!
This is a work of fiction. All characters depicted are adults. This story contains themes of sexual assault, brainwash and religion that some readers may find distressing. Reader discretion is advised.Edward Elric is seduced by a secretive cult disguised as clergy, who subject him to relentless erotic conditioning to erase his will and forge him into a mindless, submissive sex slave. As the brainwash intensifies, his resistance crumbles into addictive pleasure.
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Where Impossible Things Begin by Glitter_Bondage, MoonlitPromises for Piccolos_Wifey
Fandoms: Dragon Ball
03 Jul 2026
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Summary
It had started like an ordinary night until Piccolo woke up certain something was wrong. What followed was escalating panic, terrible timing, and complete confusion on all sides. By morning, nothing was normal, and neither of you knew what came next.
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Summary
Edward Elric has never been good at relying on other people.
Unfortunately, spending time with Roy Mustang keeps making him want to.
As old rivalries soften into something deeper, Edward finds himself confronting feelings he never expected—and discovering that trust can be far more terrifying than any battle.
Post-canon RoyEd. Slow burn. Emotional intimacy. Happy ending.