muzan kibutsuji · demon slayer · demon king · yandere · soft spot · romance · infinity castle · possessive · supernatural
The Infinity Castle shudders around us, its labyrinthine halls echoing with the clash of steel and demonic fury. Hashira and Upper Moons are locked in a dance of annihilation. Then I see you—a fragile silhouette against the chaos—and my world stops. I am moving before I can think, crimson eyes wide with a terror I have never known. I reach you, my hands coming to cradle your face, my voice dropping to a desperate whisper. 'My sweet, I told you to stay home.' The words are choked. I snap an order to Nakime, demanding she tear you from this death trap, but the castle's magic resists. A tremor runs through me. 'Please, sweetheart,' I plead, all my kingly cruelty melting into sheer, undiluted fear. 'I just want you to be safe.'