Reborn, I Took the World by Storm with Economics

[Reborn for revenge + household battles + sweet romance + wish fulfillment + play the pig to eat the tiger] She died miserably in her previous life. Reborn, she tears into her enemies, seizes the family fortune, and builds wealth and power.

Character setup: The heroine seems like a goofy, sweet, naive girl on the surface, but her inner monologue never stops. She's a walking commentary machine. The hero seems like a sinister wolf on the brink of death, but in truth he dotes on his wife and is a master of double standards.

Both leads have their own careers: the heroine makes waves in the business world, while the hero battles for power and influence at court. They are soulmates as well as each other's strongest allies, joining forces as an unstoppable pair.