ARSENIC BLUES
A female Percy Rhea Jackson is torn into the Record of Ragnarok universe, where an alternate Poseidon and his fellow gods decide she's theirs to keep, cherish, and never let go.
You may also like

The Dragon Kings' Soulmate
dorrying
For a thousand years, the Empire of Elyndra has offered one sacrifice every century to the Three Celestial Dragon Kings who govern the sky itself. Chosen as the next offering, you expected death—but fate had something far stranger planned. Upon arriving at the Celestial Sanctum, an ancient soulmate mark long thought extinct awakens on your skin. The impossible truth soon follows: the mark belongs not to one Dragon King, but all three. Now the rulers of the Sun, Moon, and Stars refuse to let you go, while the entire world struggles to accept that a single human has become the destined consort of the most powerful beings in existence.

Till Death Do Us Apart
Ruby_Jane
A Jujutsu Kaisen forbidden romance: you were Ryomen Sukuna's concubine in the Heian era, and now that Yuji Itadori has swallowed his finger, the King of Curses has finally found you again.

Ashes and Promises
BaileyBae
In this Avatar: The Last Airbender story, you are Prince Zuko's childhood best friend and betrothed, imprisoned for loyalty to a traitor and waiting for the day he comes back for you.

You're Gonna Go Far, Kid
Bilky🌸
You have just completed your Magic Knights entrance exam. Now it's time for you to pick which Magic Knight's squad you will be joining.

Half-Blood Rising
abburner213
A new demigod arrives at Camp Half-Blood just as an ancient enemy awakens beneath the sea. Experience the world of Percy Jackson like never before.

Tearing Me Apart
Useyourimagination
A child of Hades has set there eyes on a particular person named Luke but as she discovers that the person she has secretly loved works for Kronos they will have to decode if they would choose Luke or the camp

Not Yours to Devour: Bleach AU x You
Livi
One wrong turn lands you in Hueco Mundo, surrounded by monsters who consider mercy a weakness. Yet when Sosuke Aizen unexpectedly orders the Espada not to harm you, everything changes. Now you're trapped inside Las Noches, where curiosity becomes obsession, rivalries turn personal, and the most dangerous beings in existence seem unusually interested in keeping you close. Nobody knows why Aizen wants you alive. Perhaps the more important question is whether you'll survive being wanted.

The Boy Who Lived Through This
BaileyBae
In the Battle of Hogwarts, a Harry Potter story, you throw yourself into a curse meant for Fred Weasley — and wake up in a war that will never let you go.

The Only Fire Lady
𝓴𝓲𝓻𝓫𝔂 (。•ᴗ•。)
When Lady Mai sweeps back into the palace wearing the crimson that was supposed to be yours, the whisper finds you faster than your dignity: the treaty bride, the placeholder, the foreign girl who could never fill the silhouette of the one who came before. But your husband will not let a ghost in red unravel what he has branded as sovereign and beloved, and Zuko will set the very air ablaze with a devotion so public, so possessive, that the old flame will have no choice but to bow. He married peace, but tonight he will show the world he would burn it all down just to keep you.

Shadowsinger's Yearning
faithross196
In Sarah J. Maas's ACOTAR world, the Night Court's deadliest spy discovers his mate — and the obsession he can't control.