Nohoya cerita

My name is Nakamura Hina. I was once one of the greatest killers and assassins in all of Japan. I was called "the Black Flower" because I was a pretty girl, but my instincts were those of a beast. One day I was murdered and I was reincarnated into the body of a certain Akiyama Miyu, a shy and very studious girl. Now I will do everything to reclaim my former place as a serial killer. But between love and blood, who will win the battle?