Sera Wynn joined the Scouts to fight titans. Or so they think. But beneath the name lies Isla Fane, a girl from the Underground with a vendetta sharp enough to carve through steel. She's clawed her way to the surface, driven by the belief that Levi Ackerman-now humanity's strongest soldier-betrayed her family and left her to rot in hell. What Levi doesn't know is that the quiet new recruit watching him from the shadows is planning his murder. What Isla doesn't know is the truth behind her past is far darker than she ever imagined. In a world of monsters, the most dangerous thing might just be a girl with nothing left to lose-and the man she's been taught to hate. All rights for the characters and the Attack on Titan universe belong to Hajime Isayama. LEVI ACKERMAN X ORIGINAL FEMALE CHARACTER Major spoilers ahead if you have somehow not watched this show in its entirety. It begins at the end of season 3, and takes place during the time after reclaiming Wall Maria and the reconstruction of it. It will continue until the events at the end of season 4 with time skips in between. I plan to stick to the timeline of the original story as much as possible, veering off script when the need arises. But I'm only human and may get certain things wrong. If you catch an error, please feel free to KINDLY let me know so I can correct it. This story will contain some extremely dark themes with a plethora of content warnings. I will add to the list as the story is written. Please read them carefully, I value your mental health first and foremost. Also, this is a TRUE SLOW BURN! If you don't like that, or just here for the smut, then this is not the story for you.