Nah, the game Tea Society of a Witch has girls with the most disproportionately large thighs I've seen in a video game. Methinks the artist who did the dialogue portraits had an insane thigh fetish, but a different guy drew the cutscenes since the girls looked more properly proportioned there.
Never heard of the game, but I just took a look at an image and those are pretty big. I wonder if the artist for both games go out together for tea and talked about their fetishes for Large thighs on young girls. I'd believe that.