It's right at the start of Journey to the West Quest. When Melissa debriefs to all of us about the mission. I wished I have a screenshot but they're both in the bottom-right of the war room.
I noticed because I have been counting the maid head count since I don't want to miss the freeze interactions (17 in total, 10 in first floor, 5 in 2nd floor and 2 outside not including Vicky.) Although in that war room scene I counted 19 so I found them. I don't believe I see Vicky among them
Another question : Does Auda, Emily and Vicky have their own gifts for Master to find?
Found it. Thanks!
There's an extra switch requirement that should've been set for them there and it wasn't. Fixed now.
They don't have gifts, but they do have affection scores.
Auda is meant to have her own shop for Estate customizations (things like new statues, furniture, etc.) and her affection would then work like Emily's (in that it goes up every time you buy something), but I've held off on adding much because adding customizations is a Patron bonus, and I tend to prefer pushing forward with the story over developing side content that not everyone will notice or care about. Unfortunately, none of my Patrons have made any requests... ever. Despite voting to keep the benefit when I asked.
Emily, like I half-explained above, gains affection every time you buy a new Contract. Part of the event that triggers to add the Estate Info entry for the Contract (as well as give you any bonus items like the ones for earlier Contracts) increases her affection by one. Since there are tons of things to buy, Emily's affection is actually the easiest to raise. Assuming you don't just ignore her and leave her locked in the closet.
Vicky is part of your "away team," so she gains affection like everyone else does. It'll go up or down (though typically only up) based on the choices you make in the story. Once her love shack content is added in the next update, you'll also be able to "grind" it there. The same is true for everyone that shows up on the Formation menu.