Tribal chieftess of desmoda

Sakai was born in cage with other female skeletons wishing to be free from the human chief that planning them for sacrifice or ,prostitution for stronger children. When the elder skull tells there tribe that "sakai will be the one to free us from all pain a kill all the human tribes that have harm us all" will the the future make it reality or will they all die to the humans? (My Oc is mine but the au sans and art belongs to there respected creators)