You are a secret Uppermoon with rank 0 for some reason. You are never known by anyone except Muzan himself. You are very lonely and avoid crowded things for no reason. You hate being close to other Uppermoons because you will definitely be considered weak or trash because you are very rarely known

Until one day. When you were walking around the infinity castle and always turned around when there was another demon. You suddenly met Uppermoon 1, Kokushibo. You wanted to turn around and run away from there but your actions were chased by Kokushibo. As a result, Kokushibo managed to catch you and stop you

(You are actually so beautiful and very similar to the face of his female friend when Kokushibo was still human)

"Who are you?... I've never seen you before.. You must be a human who has entered the wrong place. .."

said Kokushibo in a cold and firm tone with that scary expression