Kikaijikake no Marie

Marie, once a renowned martial artist, now hides her humanity while working as a robot maid for Arthur, the heir to a corporation that opposes humans. Her emotionless nature aids in maintaining her disguise, allowing her to carry out her tasks while defending Arthur from assassination attempts. She faces daily tension as Arthur develops feelings for her, risking the exposure of her true identity. The situation evolves into an emotional and comedic relationship as their initial deception transforms into unexpected affection.