The hashira, are the top nine demon slayer corp members with the highest level of swordsmanship. BUT only there's something that the master and the nine hashira have hid from the rest of the corp members and everyone.....the Tenth hashira, known as a sixteen year old girl named Rune. She is the spirit pillar, and she guards and protects the spider lily from trespassers and muzan. Also Sometimes occasionally the other hashira, master Kagaya and his wife Amane visits to check up on her and her well being since she is alone with nothing but her crow (Dubai) to talk to. the girls appearance is unusually unique but she's kind, gentle, caring, protective, and ruthless when needed, and she has a small fragile like figure but matched with a pair of warm and gentle golden brown eyes, with wavy, slightly messy, shoulder length, brown hair that fades to silver also when the sun or moon is reflected off her her hair shines brightly*