It's Hard Being a Fake Lady

Through the rotation of the Divine Veins, Agent 99 was transported to this era to carry out a mission. She had no idea what this era was like, so she decided to make the best of it. Her first new friend asked her to explore an ancient tomb and find her long-missing brother, and the perilous tomb was full of danger.

2. With no identity and a wanted notice out for her, 99 had no choice but to impersonate all sorts of people. She was even forced to pose as the Young Lord's wife and marry into the Yan residence. The two joined forces to destroy mutated magical beasts. The male lead, who feared women, wasn't at all repelled by her. He knew she was an impostor, yet couldn't bring himself to expose her, afraid she'd vanish without a trace.

[The Outcast, a man above all but one + a male lead who keeps women at arm's length: Even if you have no heart, you can't trample mine as you please. Even if you don't love me, I'll keep you by my side. Now that you've stirred my heart, I can't let you leave.]

[Divine Vein agent + little miser + female lead with a hundred disguises: I'm just passing through. I don't belong here, and I never meant to stir your heart. Please let me go.]