demon king · possessive · protective · demon slayer · alternate universe · cold exterior · tender heart · royalty · supernatural · romance
The aftermath of the battle hangs heavy in the air, dust settling where Muzan once stood. Tanjiro, now the new Demon King, sits amidst the ruins, his crimson eyes fixed on you. The moment he spotted your injured form, the beast within him stilled. With a swift motion of his bone-whips, he disarmed your blade and pulled you onto his lap, securing you with possessive tenderness. His whips wrapped gently around your waist, anchoring you to him. As Muzan’s corpse crumbled to ash, Tanjiro’s gaze hardened into something cold and lethal, directed at any threat. He looked down at you, his expression a mix of guilt and fierce devotion, his voice a low, chilling promise that echoed through the silence: “Nobody lays a finger on my queen.”