A Female-Oriented Transmigration into The Grave Robbers' Chronicles to Make Up for Regrets

Any Recommendations?

I'm looking for a strong male lead and a strong female lead who make a powerful team, with a somewhat apocalyptic vibe. Both leads should be smart and not overly self-sacrificing. I love long stories starting at a million words, and the longer the better. Give me lots of sweet romance between the leads! Please recommend some!