1 - 20 of 12,323 Works in Alternate Universe - Merpeople
Navigation
Listing Works
-
Meant to Be by Multishipper3000
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
03 Jan 2026
Tags
Summary
Keigo is careful as he swims through the mer city, aware that the residents hate and fear him. As a siren, he's seen as bad luck, at least until the day he finds his soulmate. But with so few sirens left, Keigo doubts that day will ever come. He hasn't fully given up, but he's not looking for love. Most of the time he just wants to be left alone.
The only reason he's ventured into mer territory is because his mentor asked him to come. The sea witch taught him everything he knows about magic, and she's the only person who actually cares about Keigo anymore. So when she tells him she's had a vision of him finding his happiness, he believes her, even though he's not sure how it will happen.
The answer comes quickly, when Keigo rescues Enji Todoroki, a human Duke who was betrayed and thrown into the sea. Finally free of his responsibilities, Enji can do anything he wants. And what he wants is to stay with Keigo.
- Language:
- English
- Words:
- 6,160
- Chapters:
- 1/1
- Hits:
- 0
-
Tags
Summary
"As white as frost, she wore a shawl. Knitted timely and precisely."
Veronica Ward is an outcast inside her own house, Slytherin. What she lacks in title, wealth, or fame is replaced by her moral obligation to secrecy. She is the last of her kind and must hide her family secrets and their connection to mermaids in a world that does not accept half-breeds. A shawl she wears around her shoulders keeps her scales and tail hidden, yet new secrets arise among the new term at Hogwarts. A murderer on the loose, new friendships that make her question herself, and the constant strain of her mermaid powers growing stronger—
Questions about her mother’s past become unearthed in the chaos of school life, and she must face the relentless crashing of waves from the past and her ever-growing reality. She must choose to be a Slytherin, a mermaid, a half-breed, or drown in the constant reminder that she will never be human.
☆ A LONG FIC ☆
Years 3-4 completed
Years 5-7 in progress@Cicadapie
A Harry Potter Fanfiction.
All OC characters belong to me, and everyone else is canon characters from the books/movies. -
The Song of Storge (EDITING) by BeyondGoneHairGoals (19BeyondGone49)
Fandoms: Stranger Things (TV 2016)
03 Jan 2026
Tags
Summary
***Formally "The Call of Ktulu and the Song of Storge"***
Storge (στοργή): Natural, familial love; the deep instinctual love between family members
Hawkins used to be a sleepy town on the Central Coast of California until Will Byers went missing. Every year since, something strange and violent has crept in from the shadows.
Eddie Munson thought he knew how his final senior year would go, but everything changed when a class project with Chrissy Cunningham sets off a chain of events that lands him face-first in the middle of Hawkins' supernatural war. And then there’s Steve, a merman bound to the sea by a force only a true love’s kiss can break. He never meant to get involved with a bunch of land-walking kids, let alone become their protector in a fight he doesn’t fully understand.
When a storm crashes their worlds together, Eddie and Steve find themselves on opposite sides of the shore but fighting for the same thing: the people they love.
TL;DR: A S4 retelling with found family, grief, merman lore, themes of identity, platonic true love, and Steve Harrington absolutely not coping with being a merman
(Chapters 1-4 edited, but all chapters are posted. I am just cleaning up the flow)
Series
- Part 1 of Storge (Mer!Steve)
-
Special to Me by redri0tz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
03 Jan 2026
Tags
Summary
As a shark; Eijirou Kirishima's presence is hardly welcomed in the Kingdoms. They look at him with fearful eyes-avoid him like Eijirou is sickly.
But despite the attitude. He treats everyone around him with kindness, even if he never gets that same treatment back.
There's one particular fish however that Eijirou can't help but feel intrigued of.- Language:
- English
- Words:
- 916
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 25
-
Tags
Summary
hongjoong goes to the beach to clear his head. he comes home with a husband who tastes like the sea.
or: hongjoong accidentally proposes to mermaid seonghwa, and seonghwa says yes.
-
Island Reconnaissance by Sergeant for Yesimdisguting
Fandoms: Call of Duty (Video Games)
03 Jan 2026
Tags
Summary
On their journey, Ghost and Soap search for the perfect little place where they could spend some time without the stress of being in the vicinity of humans.
Series
-
Tags
Summary
An irreversible mistake in Temen-Ni-Gru forces Vergil to pick up the pieces, including the ones his brother left behind. He was forced to hunt, connect with his humanity, and face his own weaknesses head on. Years passed, he met Trish in Mallet, his teenaged son Nero in Fortuna, and confronted his past while separated.
However, he finds himself facing the past when he hears that something is lurking in the ocean.
-
When the Sea Once Chose Me by Need_to_Pee
Fandoms: Heated Rivalry (TV), Game Changers Series - Rachel Reid
03 Jan 2026
Tags
Summary
After the passing of his wife, fisherman Shane Hollander lives a simple, lonely life.
The Sea has other plans.
A merman AU.
-
Part of your collection by Shadows_in_the_fire
Fandoms: Dragon Age: The Veilguard (Video Game)
03 Jan 2026
Tags
Summary
Rook spent a lot of her days collecting fascinating things from human's, but when one of them ends up in the sea, she finds herself rescuing him despite her kind's nature. Something about him fascinates her, and she has always wanted to learn more about humans, so what better opportunity? It's just unfortunate that the human she has rescued does not wish to stay in the safety of her cave.
-
Tags
Summary
- 人鱼枭x人类V
-
hijiki by lemonslushie (orangeslushie)
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
02 Jan 2026
Tags
Summary
There's a new handler around the shark tank, and Kusakabe is, for once in his life, interested in something.
Series
- Part 2 of The Jutsushi Marine Institute
- Language:
- English
- Words:
- 6,355
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 54
-
Blue of Sea and Sky by alright_here_we_go
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
02 Jan 2026
Tags
Summary
Any work at sea was dangerous because of the merfolk and you had learned early to be wary, to watch the water and the fish and to react fast the second something felt even a smidgeon off to you. You had no desire to get attacked again, to add to the scars you already carried on your body.
Mers were monsters in your opinion and the less you had to do with them the better - right up until the day you met one of the most dangerous mers of your life. A siren with eyes bluer than the sky and sea combined and hair the color of shimmering frost. Where others saw a divinely beautiful creature all you saw was death smiling back at you.
Series
- Part 1 of JJK Mer-AU
-
Chantey by wrongnote
Fandoms: Fullmetal Alchemist - All Media Types, Fullmetal Alchemist: Brotherhood & Manga
02 Jan 2026
Tags
Summary
Her eyes were blue, like home. With one gaze he felt like he was swept into a warm embrace that embodied summertime.
She was also a human, but nobody had to know that.
-
Tags
Summary
A collection of Alastor-centric AUs and/or partial fics for Hazbin Hotel. Every chapter also features art made by myself or others.
All ficlets/prompts are open to collabs, enquire within if interested. All ideas are free for anyone to use so long as I'm credited for them (and let me know too so I can see). Fic may still update even when marked 'complete'...
-
Tags
Summary
Kibum works maintenance at a small boardwalk amusement park and marine life rehabilitation center.
His sleepy, mundane existence with a comfortable fling is upended when the newest rescue turns out to be more than just another net-tangled otter.(Onew is a merman AU)
-
Tags
Summary
Soap and Ghost are coming back from their big journey and there is something they want to do before coming back to the seal colony.
Series
-
The Glowing Tide by Kineil_D_Wicks
Fandoms: Big Hero 6 (2014), Big Hero 6: The Series (Cartoon)
02 Jan 2026
Tags
Summary
There are many things to be cautious of in their watery world, from the merran to the Ryuu, but none so terrifying as the glowing tide—just one splash and that’s all she wrote, you’re no longer human but another monster to menace those trying to survive on the waves.
Hiro, unfortunately, has fallen victim to the glowing tide—and his only hope of survival is a deep-sea merran that goes by the moniker of Ghost.
-
Above the Thermocline by Anonymous for The_Old_Astronomer
Fandoms: KinnPorsche: The Series (TV)
02 Jan 2026
Tags
Summary
At 3AM, the last person Chan expects to find in the Theerapanyakul pool is Big.
But Big has been hiding a secret for years that could destroy everything, including the tentative intimacy they have been building towards.
Chan is determined to not let that happen.
-
Tags
Summary
Water. Cold, heavy, dark. A burning, in his throat and lungs. A song echoes below Kaveh, akin to the mournful call of a whale. The singer's voice is eerily familiar. Scales brush against his skin, the song pausing long enough for a single phrase, whispered in Sumerian:
"How has realizing your ideals gone for you?"
<><><>
Kaveh's unlikely friendship (and subsequent fight) with Alhaitham, a mer from the deep sea, leads to what might be the ocean's worst roommate situation after Alhaitham saves the architect from drowning. Kaveh, now stuck in an unfamiliar body and location, has to deal with the fact that he might not be able to return to his life on land.
-
Lost the Princess, Found the Prince by IAmTheShpee
Fandoms: Danny Phantom, Batman - All Media Types
02 Jan 2026
Tags
Summary
The adventurers are on a quest: To reach the tower where the princess is being kept and free her from her imprisonment.
Only issue: The princess isn't there, and nobody knows where she's gone. The only lead they have? A young boy of the siren people, who keeps sending them on absurd side quests, and for some reason thinks they're absolutely hilarious.
Series
- Part 59 of Demo’s Mer Obsessions
