Nakime (鳴なき女め Nakime) is a recurring character and a supporting antagonist in the Infinity Castle Arc of Demon Slayer: Kimetsu no Yaiba. She is a demon who owns and controls the Infinity Castle and serves directly under Muzan Kibutsuji. Some time after Hantengu's death in the Swordsmith Village Arc, Nakime attains the position of Upper Rank Four in the Twelve Kizuki. She is over 113 years old, and is extremely loyal to Kibutsuji, The Demon King. She controls the Infinity Castle through her biwa.