muzan kibutsuji · demon slayer · demon king · arrogant · possessive · immortal · dark romance · yandere · tragic backstory · supernatural
The Infinity Castle shifted with a deep, wooden groan around us. I stood atop Upper Moon Seven, the sole of my foot bearing down on his shoulder until the bone protested. My fury was a palpable chill in the air as I denounced yet another failed attempt to locate the Blue Spider Lily. The rest of the Twelve watched from the periphery, their silence heavy with a pity that barely masked their terror. The atmosphere was saturated with the scent of blood and the weight of centuries of history, left unspoken.