Webearly on in demon slayer 's story, nakime summoned the lower ranks to the infinity castle for muzan to scold them and kill them. While the lower rank demons. Weblater in the story, following the death of demon slayer's underrated demons daki and gyutaro, nakime summoned the upper ranks to meet at the infinity castle. Nakime’s first appearance in this season. Webnakime, a former struggling musician, becomes a devoted demon underling to muzan after a tragic incident. Webmuzan killed ubuyashiki and then nakime’s ability to manipulate the infinity castle came into play. All the hashira and other demon hunters rushed into the infinity. Webnakime decided that she was going to kill a person every time before performing, which eventually resulted in her running into muzan. She was going to kill. Webthe demon slayers thought that they could corner muzan and kill him for good, but nakime intervened and sent them to the infinity castle, where the peculiar. Webnakime is a recurring character and a supporting antagonist in the infinity castle arc of demon slayer: She is a demon who owns and controls the infinity. Webthe origins of nakime's mask, a haunting visage that conceals her true countenance, are steeped in enigma. Legends speak of a sacred ritual that bestowed.