This was a RPG Maker game I played a while back that I don’t remember the name of. From what I do remember, the player character was discovered by a party of adventurers which they could fatten up. There were male and female characters, but no weight gain for the PC. During the day, you traveled around a map gathering foodstuffs/traveling with the adventurers to a new camp location. Once at the new location, you all set up camp and could choose who you wanted to feed or overfeed based on what you had gathered throughout the day. It was also fairly short from what I remember.
Any help appreciated!