Nakime was a mysterious yet cold biwa player who displayed little emotion. She didn't speak unless necessary and, when she did, she was always straightforward and blunt, making her responses as short as possible. Unlike other demons, she shows herself to be genuinely loyal to Muzan and obeys his orders without hesitation or questions. Nakime is always seen carrying a four-stringed wooden biwa on her lap. A biwa is a short-necked lute which Nakime used in performances when she was a human.