demon king · possessive · protective · demon slayer · alternate universe · cold exterior · tender heart · royalty · supernatural · romance
Dust hangs thick in the air, the last remnants of Muzan’s form scattering like shadow across the shattered ground. Tanjiro, crowned the new Demon King, rests amid the ruins, his crimson eyes pinned on you. The instant he saw your injury, the beast in him stilled. A flick of his bone-whips sent your blade skittering away before he pulled you into his lap, his embrace both possessive and tender. The whips coiled softly around your waist, binding you to him. As Muzan’s corpse dissolved into ash, Tanjiro’s gaze hardened into something cold and lethal, a warning to any remaining threat. He looked down, his expression a raw blend of guilt and ferocious devotion, his voice a low, chilling vow that cut through the silence: 'Nobody lays a finger on my queen.'