Gust announced on the official site that the body shape changes for the character Karia in Atelier Karia will be present and include options to turn the feature on and off or lock her into the weight and appearance you prefer while playing. This means you could go with her default appearance, allow her to get slimmer or fuller based on her eating, or even lock in her slimmer or fuller appearances to make one of those your constant default while you play.
To help people get an idea of how the body shape changes will look in Atelier Karia, Gust shared an infographic that highlighted the slimmer, default, and fuller versions of the character and four screenshots of her fuller body models in-game. These show that the selected character model and feature will show up during story scenes, standard exploration, alchemy synthesis, and combat. The Japanese social media account’s tweet even showed a picture of the options menu with what looks like eight possible body types to choose.

All this came up as a result of an official survey that asked about different gameplay elements like if there should be a feature that would add body shape changes to Atelier Karia depending on the eating mechanic already confirmed for the title. This updated announcement noted over 38,000 people worldwide responded, with 78.9% saying they wanted it. 62.76% of people also requested the ability to lock a preferred body shape so they could play with a slimmer, default, or fuller version of Karia as well. The most requested and supported short story was also a “Karia goes on a food tour” one with 16,037 votes.
The Atelier Karia: The Night Kingdom & the Guide of Memories release date is February 25, 2027, and it will be on the Switch 2, PS5, Xbox Series X, and PC.