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Arcanumori by SopapillaArtCartoonGames
Fandoms: OMORI (Video Game), The Dragon Prince (Cartoon)
15 Dec 2025
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AU of Omori set in the Universe of The Dragon Prince.
Series
- Part 1 of Arcanumori
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Once upon a time, a LEGEND was whispered among shadows. After the events of OMARI, Mari finally moved to Hometown with her mother. Only for her to find a town, full of monsters. Upon arriving, Mari encounters with Dess, a deer looking monster as she dragged Mari into one of her shenanigans until they discovered a dark place, hidden in a school's supply closet. Both Dess and Mari investigated the closet until both of them fell down into the dark world. How will the story of DELTARUNE really unfolds?
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Undertale Purple - Perseverance by AnonymousWriter08
Fandoms: OMORI (Video Game), Undertale (Video Game)
14 Dec 2025
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A long time ago... humans and monsters lived in harmony. Until war broke between the two races.
The humans were victorious and sealed monsterkind deep underground with a powerful spell, that could only be broken with the power of seven human souls.
This was the tale of Mt. Ebott, and the tale trascended into legend. Those who climbed the mountain, weren't seen again.
And so, begins the tale of the fifth human soul to fall into the land of legend, to fall... into the Underground.
This is the tale of the Purple Soul... Sunny Suzuki.
NOTE:
Currently being rewritten
Suggestions are welcome :)Rewritten chapters: 3 of 21
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While practicing for the recital, Mari happens to notice something that - in another world, where she saw things a little differently and had slightly different priorities - she might not have. Though nobody realizes it, this prevents a certain argument and everything that could have followed it. Now she just has to make sure Sunny's okay, and that the recital goes perfectly. But being a big sibling can be hard, especially for someone like her.
(Or, the one where Mari is autistic. This changes less than you'd think, yet changes everything.)
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The Multiverse is Vast
One Protector, One Destroyer
They serve the Supreme Beings who maintain the balance of the Omori MultiverseBut what if they have to work together one day?
What adventures await them?
What enemies will they make?
And 13 1 18 9
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The grand window above the crib had been opened to let light in, crimson curtains waltzing lazily with the summer breeze. Outside, Mari could hear the trees whispering softly, gossiping with curious leaves as rays of sunlight capered about the floor. Before she'd even seen his face, it felt like the universe was telling her.
Don't worry, he'll be perfect.
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MARI IS HOME by PapayasTehSkeletor for TheNextGamer, VakaPyro
Fandoms: OMORI (Video Game)
02 Dec 2025
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Four years after tragedy shattered the quiet town, the impossible happens in Faraway. The childhood friends Sunny, Kel, Aubrey, and Hero are drawn into an uneasy reunion. At the center of it all: a familiar figure who seems to have come back from the death.
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–Sigue la aventura de Sunny, junto con sus amigos, a través de sus sueños como Hikiko y de su realidad mientras descubre su verdadera identidad y como pese a lo aterrador que puede ser afrontar las cosas no puede quedarse encerrado en su propia cabeza, y como tal vez puede hacer de algunas cosas de sus sueños una realidad. El (¿Ella?) espera por ver cómo los tristes días oscuros y nublados de su vida vuelan con el viento dejando los hermosos cielos soleados y despejados como el único vestigio de que alguna vez hubo lluvia.
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Se recomienda utilizar el traductor automático de tu navegador si es que no hablas español.
It is recommended to use your browser's automatic translator if you do not speak Spanish.
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ihaveaknife:]: *shitty recorder version of the duet we were supposed to play at the recital* by Basilmybeloved143
Fandoms: OMORI (Video Game)
25 Nov 2025
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Ihaveaknife:]: *shitty recorder version of the duet we were supposed to play at the recital*
bitchassmf: sunny, btween u and kel y’xll r making me question my sanity
Townflowertwink: wanna Snapple?shitty omori fanfic that is at the same time my magnum opus
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After a horrible accident that leaves Mari hospitalised, Sunny is berated and blamed by his father. Sunny convinces himself that everyone he knows and loves will abandon him once they find out what happened.
Wracked with guilt, Sunny runs away from home, not knowing what the world had in store for him.
Will Sunny ever be forgiven? Could he ever forgive himself?
Or will the world hate him?
Life isn't fair.
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Something had to give. Darkness seeps into Headspace by the second, and Omori has to come to terms with the fact that all he knows is a lie. Fortunately, a not-so-familiar face promises a better world. Where they can live in a perfect Utopia and play forever. Omori just has to share his power to make it happen.
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4 days left before a big move, Sunny notices some strange things in the house he's lived in for 4 years. The strangest thing of all? His sister is at his front door.TLDR: Omori meets Hikiko, and they agree to merge Headspace. Sunny meets Mari from OMARI in the prologue.
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Life of the Teenage Cryptid Mari "Something" Suzuki by The Tattered King (The_Tattered_king)
Fandoms: OMORI (Video Game)
10 Nov 2025
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Mari Suzuki was never normal
She wasn't human, no she was "Something" else... Literally.
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Behold the idea that Mari is Something taken to its logical extreme.. Mari was always Something.
In a universe filled with the unnatural and the anomalous, A young girl who is secretly a shapeshifting monster hides away her truth from society.
That being Mari Suzuki. A girl who was born as a cryptid and raised by her human parents while pretending to be human just like them.
Series
- Part 1 of Something!Mari AU
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He still couldn't believe it to be the case. He couldn't believe that Mari would still be standing in front of him, still smiling, still being happy, still loving him in spite of everything he put her through.
But Sunny knew the truth deep down, no matter how much he dreaded it and how much he wished for it not to be the case.
Mari is dead.
I killed her, and she ascended to heaven.
That thing possessing her corpse is not her.
TL;DR: “Mari survives the fall” meets “Mari becomes Something”. It only gets worse from here.
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Aubrey and Sunny love Mari. Very much. And Mari loves them back. Most likely, more than they can understand. However, lately, a wall of lies, silence, and avoidance has risen between them. It's time to find out how two little angels will pull a girl, forgotten by herself, out of the shackles of terrifying thoughts.
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"But that day, at that noon, freed from my nightmare, returned to that tranquil silence from a strange world I was not accustomed to, I did not actually perform my duties.
I was sure that I served no one, and that everything served me, that everything shielded me and brought me back, erasing my murky, bad dream."
Mari was preparing for a recital, only to wake up in a strange room.
TL;DR: Mari ends up in a mental ward after attempting to commit suicide. Or did she? No one knows. She certainly doesn't either.
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It was an accident. He didn't mean it. She didn't mean it. Nobody wanted to hurt anyone. It was an accident. They didn't know what they were doing. He would have done the same. So why? He's mad, so mad. And he doesn't understand. He doesn't... get it.
or, the OMARI au you've always wanted ;)
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Very few and far between updates
Series
- Part 1 of Ghosts For Dummies
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If you want to make some real money, call that number.
Mari stares at the string of numbers printed on the white card. Between her debt and her empty pockets, there's no guarantee that she'll be able to make it out of this pit she's been thrown in on her own.
If this offer is real, it could make all the difference. But if it's not...
There's only one way to find out.
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"I want you to give Basil something. Could you bring a pen and two sheets of paper by tomorrow night? The sun is rising"
She didn't realise it was already morning. She didn't even realise she finally could see her brother's face now that she got used to the darkness.
He wore the same face as four years ago. It really was her little brother, but something seemed wrong. His eyes. His gaze. His hair. Everything about him seemed more empty. More dead.
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Basically Omori but Mari killed Sunny and Hero saw it.
Omari but it's kinda like a swap au?
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Mari took Sunny's place -_-
Sunny took Mari's place :D
Hero took Basil's place o.o
Basil took Aubrey's place >:(
Aubrey took Kel's place and :)
Kel took Hero's place :( -
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Summary
The day of the recital, Mari practices the piano, waiting for Sunny to join her. When she hears the sound of wood clashing against the bedroom floor, she instantly knew something was off.
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This fanfiction will be mostly Basil and Mari Centered.Feedback is appreciated!!
11/29/25- This will most likely remain un-finished
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One fateful quarrel forever changes the course of their lives.
The fragile world of friendship and family begins to crack, plunging each of them into a whirlpool of shock, pain, and unspoken reproach.
What will remain of their bond once everything that held them together collapses?
Can they find a path to forgiveness and healing when it seems the past has left them no chance?This is a story about the price of perfectionism, the weight of guilt, and the fragile threads that bind us to one another.
1 — 11: Prologue
12 — ???: Dream and Daydreams and oblivion. Reality.P.S. Inspired by the Rainy Mari mod. I hope the creators of the mod won’t roast me for this ;D