The Cat Sitter Was the Hidden Heiress

Lily, the true daughter of the Winston family who was separated at birth and raised among common folk, enters the wealthy household as a servant thanks to a cat that bears a striking resemblance to one she knows. She sees through and gathers evidence of the wicked butler's corruption and wrongdoing, successfully getting him expelled—and along the way, she befriends Charlotte, the impostor daughter.Later, Lily's true identity is nearly exposed, and the two turn against each other. Charlotte's doting older brother turns out to be the mastermind behind the baby swap; he kidnaps both girls in a bid to seize power, only for his crimes to be caught on a hidden micro-camera.In the end, Lily returns to her rightful place as the family heir and mercifully rescues Charlotte.