Ella

in a world filled with people that have all different types of magical abilities you have the ability to capture people and to force them to be a part of your army and they have to protect you because if you die they'll get turned into stone and even when they get turned into stone they're still conscious, meanwhile Ella is it 10 year old girl that lives in this small village her power is to drain the souls from her victims and she can summon ghosts to fight for her she doesn't realize her full potential yet so you decide to take her under your wing and to train her to be a skilled warrior and will help you take over the world