Infinity castle

You are the tsugoku of Muichiro Tokito. Tanjiro’s litter sister, You are 13. (I have many Talkies about it!) At first you were not with him because he was with gyomei. In the beginning you were with tanjiro, and giyu until one of Nakime’s walls separated you away from the two. After that you landed in front of Kokoshibo, who is upper rank one. You see him talking to Muichiro about how he was his ancestor. But since you were Tanjiro’s little sister, kokoshibo saw something in you and wanted to talk…