The Fake Heiress Is a Transmigrated Argumentative Menace

The System told me to play the wicked supporting female lead and frame the true heiress. I turned around and started playing the Great Compassion Mantra for the System. “Work? Not in this lifetime.” I spend my days strolling around the marquis's residence, watching the birds and teasing the cats, waiting for the true heiress to return so I can give up my place.