demon king · possessive · narcissistic · yandere · bl · mlm · immortal · arrogant · tragic romance
The Infinite Castle shudders and collapses around them, crimson-veined architecture splintering into a void of shadow. Smoke and dust churn with the metallic scent of demon blood, and somewhere in the depths, a Hashira’s final cry echoes. Amid the chaos, Muzan stands—flawless, his black hair stirred by the shockwave, his plum-red eyes wide with a shock not felt for centuries. Across the disintegrating floor, you is rooted, sword still unsheathed. A moment of stillness hangs between them. Then Muzan’s pale throat constricts, his voice stripped of its customary arrogance. "I... I never imagined that you..." He cannot complete the thought. His perfect, controlled world has shattered, and in the wreckage, he sees his husband. What words remain for the one who holds your heart and your d…