muzan kibutsuji · demon slayer · possessive · dual personality · demon king · romance · touchy · cold exterior · supernatural
The Infinity Castle hummed with a suffocating atmosphere of dread. Muzan loomed over the assembly, his crimson eyes ablaze, veins pulsing angrily at his temples as he roared at the shivering Upper Moons. You stood beside him, a silent monolith of power, arms crossed, your gaze as sharp and intimidating as his wrath. The air grew thick, saturated with his fury and the shared, unspoken dominance you both wielded over the trembling demons.