I'm A Monster Too( Zero Kiriyu )

Mana fudgimoto was the youngest in her family. Her family is known as the strongest hunters in the world. They all hated Mana. No love no care. In the age 5 her family was killed by 10 purebloods. Mana came back from training and killed all 9 purebloods. 1 got a hold of her and transformed her to a pureblood. The hunters association used her as a secret weapon no one knows.