Goddess of Blood and Death GBD

A genius feared by the gods themselves is freed from her prison of time. Her only goal is revenge. Along the way, she meets a brilliant inventor who runs a criminal organization hell-bent on taking down the sects and their "might-makes-right" approach to law.

The protagonist upon seeing her new body: "Well, it's not so bad, I guess. I'd rather f*ck a woman like this than be a woman like this, but at least I shouldn't have a problem hitting on girls."

"Miss Mob Boss, I'm really hungry. Since you've tied me to this chair, at least feed me. Please? No, don't have your men do it; they're scary~" >w<

OP female lead x female criminal mastermind—and yes, she does have an actual plan.

(Quoth the Raven, "Blood and gore!")