I Became an Extra in a Parenting Story

A woman reborn as a background maid tries blending in, but her modern knowledge outs her to the family's secretly-reincarnated daughter. Dragged into their absurd parenting scheme for the male lead, she becomes the unexpected obsession of the brother she meant to evade. A comedy of errors where survival means escaping the spotlight, and a protagonist who won't take "no" for an answer.