Their Immortal

Hi guys so I decided to make a young justice fanfic but im experimenting with this one quite a bit so bare with me guys!
She's a warrior bred. Every inch of her was made to kill. She's spent centuries fighting for those who protect the weak and innocent. She's the one hero's pray to for protection before going into battle. She's a Guardian Angel for the hero's that guard us. What happens when she begins to loose herself to the bloodlust after nearly an eternity of fighting demons and other creatures of the dark? What happens when after a battle she's exhausted herself to near death? Well find out when she meets two completely different hero's who's souls have been tethered to hers since before they were born. This is their journey and how they found a way to love despite the odds.