Demon Guardian | Levi x Fem!Alastor!Reader

In the clutches of a relentless ailment, a fragile woman finds herself at the mercy of a malady only the elite, bathed in the daily luxury of vitamin D, can stave off.

On the brink of demise, she summons a demon, an otherworldly pact sealed with the offering of her very soul. A desperate plea echoes in the shadows, securing the safety and perpetual guardianship of her only son.

Enter the realm of Levi Ackerman and his infernal confidant, Alastor, now adorned with the name of Y/n L/n-an odyssey where the threads of mortality and the supernatural intricately entwine.