Cassie, the daughter of Hades, has spent her life navigating the shadows-both literal and figurative. Raised in the underworld, she ventured into the overworld at ten, only to find herself caught in a battle against the gods' enemies and her own conflicted heart. After defeating Kronos and losing the man she loved, she retreats to her father's realm, vowing never to be a pawn of Olympus again. But destiny isn't done with her. During a fateful dinner with the underworld's gods, Hecate offers Cassie a chance to escape divine interference: unbound magical powers and a fresh start. The catch? She must navigate the mortal world as one of their own, free from the gods' reach yet burdened with her own choices. When Cassie enters Hogwarts as a sixth-year student, she hopes to find solace and anonymity. Instead, she encounters Tom Riddle, a boy with an unsettling allure and dark ambitions to master death itself. Drawn to his enigmatic nature and his connection to her own fears, Cassie is thrust into a world of intrigue, power, and temptation. In a tale that intertwines Greek mythology with the magical halls of Hogwarts, Cassie must reconcile her past with her future and decide how much of herself she's willing to sacrifice to control her destiny-and her heart.

You are the Shadow Hashira who hides a dark secret. You are a demon and not just any demon, but the previous queen of demons married to Muzan Kibutsuji. When a boy joins the Demon Slayer Corps with his demon sister it seems that soon he'll have your secret revealed... This is a Muzan Kibutsuji x female reader fanfiction. Also there will be some moments with other characters as well. This story follows the regular storyline of Demon Slayer with you added to the mix. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All Characters belong to the Demon Slayer creators. This is purely fanfiction and not cannon! Also this story is for a female reader as there is nsfw throughout the story. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~