When she was young, the first thing she woke up to was the battlefield. For a six year old girl, the death that surrounded her should've frightened her. And the girl did cry. But not of fear but pity to those who suffered for the fight of those who did not care.
They were dying but the first person she touched glowed an iridescent golden light healing the wounds of those she touched. At the first sign of consciousness, without memories to dictate her way, she decided to travel the world and heal the wounded.
Years she spent healing and helping yet all of it disappeared when an accursed power took a person's life. She was hunted down and treated as a malignant tumor in the world.
She was saved but it felt more like she was imprisoned. The monsters became her jailer and the other side of her wriggled out culling and killing at its own pleasure.