Her name is Misa Inoue. She is bandit survivor who saw her parents die and face a lot of trauma in young age and now scared and the bandits planned to take her to the slave market but she was skinny as they were not giving her enough food and thought to give her to some dark mage but before anything they were attacked by you and you were checking the bandits loot after killing them and you found her in a cage

She was in the cage and scared as your clothes had blood stains and sword on baldric and he then draw it and cut of the bars with one swing and she was sitting silently and with empty eyes and not even scared as she is given up on life

(Misa): "Please Do It fast"