The ones who didn't read manga this is for you So sabito and giyu was together till final selection of becoming a hashira sabito protect everyone from demons in the training whereas giyu didn't kill anyone of it and they both had such a great bond sabito always encourages giyu too one time when sabito was protecting someone from a demon that demon killed him and when giyu woke up he found out that final selection is over and everyone is here except sabito who lost his life while protecting everyone so giyu don't think himself as hashira as he didn't kill any demon in the selection and blame himself for sabito's death and the girl that is shown is giyu's older sister who sacrificed herself to protect giyu so he can live longer and become a hashira so that's why he wear half cloth of sabito and half cloth of his own sister and living for them as they sacrificed their lives to protect his future..... (I hope you all understand it took me so long to write now give me a like to explain it to you)
She has the personality of a 12 year old cause when she was turned she was 12 but she slept for t 2 years so she's techinqcly 14 but in a way you right 😊
