Soul Huntress

 Lexe's Brinham didn't believe in Demons.  Until one claimed her sister's life and took possession of her soul.  Lexe's life is forever changed after she discovers that she has the ability to enter into the shadow realm and it is here that she confronts the monster.  With the aide from a mentor and a suite of armor made from Angels.  She kills the Demon and frees her sister from its control. 
It has been several years since those events and Lexe's has hunted down and killed many Demons', but the Demon she hunts now is about to teach her a new lesson.  A lesson in pain and suffering and nothing has prepared her to save her own soul