Swap Bride to the Cruel Wolf Alpha, But I'm Crueler

Lilith is the evil twin. In her last life, her soft sister was married to the brutal Black Wolf Alpha and was abused to death. Lilith herself was married to the dull White Wolf Alpha and died of loneliness. Reborn, Lilith decides to marry the vicious Black Wolf Alpha herself—and let her sister marry the gentle White Wolf Alpha. This time, she will make the Black Wolf Alpha and everyone who ever hurt her sister pay in blood.