Rebirth: An Assassin's Revenge RAR

She was the top assassin of Zenthia, but fate decided to put her on a different path.
After her death, she found herself in the body of one Luna Brooke, the seemingly deranged elder daughter of Julius Brooke.
With the former's memories intact, she broke up with her cheating fiancé who attempted to murder her and set her sights on another man who had...
E-e-eight packs?! O.O
"Alexander White, will you marry me?"
Her stepmother, step-siblings, ex-fiancé... None of them were going to get away with what they had done to her!