I'm A Monster Too( Zero Kiriyu )

The day

(This is going to be 3rd pov to make it quick)
So Mana was six yrs old and she was a sweet caring little girl who was mature for her age. She had 2 older brothers and one older sister. They never really liked mana due to how she looked differently from others.(pic) All her family had black hair and brown eyes. Her parents seem to never notice her and her talents. She seemed to handle weapons well and enjoyed  playing music, she always being outside. Even though she was neglected from her family she still cared for them and did things for them when they never noticed. One day as mana was training outside she heard a scream. Mana ran inside to see blood smeared on the walls and saw her sister being quickly dragged while screaming to let go. Mana saw horrifically as her sister was being killed by a vampire. She quickly grabbed her sword  and went to go back but he was gone. She then started calling out to her family but she heard gunshots upstairs. She then heard her mother cry out for her to run. But it was too late one of the vampires grabbed her and held her.( there was 3 purebloods)  vamp 1," Well well seems we have another." Vamp 2 ," She smells very good say how bout a snack ?" Vamp 3," Or we could something more." The mother knew by what he meant and was yelling out no that she rather have her dead than her become one of them. But her pleas were silenced by a snap of her neck. The once composed girl was then broken to crying . The pure blood then grabbed the little girl and bit himself and kissed the little girl forcing the blood down her throat. He then bit her neck and dropped the little girl. As mana was in a great amount of pain she struggled to get up but it seemed as if all her life was gone and she stood emotionless.  The purebloods just looked at her as she grabbed her sword and in a blink of an eye she killed 2 of em . The last one looked at her in shock and tried killing her but mana was too fast and swiftly ended his life. After mana just dropped and broke down and slowly her hair starting turning black and her eyes became red (a form she uses to kill vamps)  her hair went back normal when the hunter association came . Turns out manas family were hunters and because of that many vamps were after her and it tragically ended. When the association found out she killed the vamps they were impressed but finding out she was a pureblood wasnt what they wanted but they were willing to raise her as one of their own. She then was trained under taiga to maintain her powers and any vamp things😂. Her identity was kept safe and her name was soon made. And thats how the mana came to be .