I get a little annoyed when I see Older Sister Maid with her worries, but never does anything about them. Hopefully being treated with inequity again here will make her more passionate about what she wants to do with her life. I bet you she's wondering if she was ever "human" or could be an individual without Maou's care, and now's the perfect opportunity to help her discover that.

Knight is now officially Mistress. :3