during my gameplay in the game (Princess & Conquest) I’m with the harvest princess but I wanted her to gain more weight but the limit is 79kg. Then she gains a weight loss buff then the weight gain is locked and does not go out of 79kg.
Is it possible to modify this with patches, programming or not?
Short answer, No. It looks like it’s an RPG Maker game, a paid one at that. As I recall, RPG Maker games can’t be “modded” much at all unless you have access to source files (which as a paid game you likely don’t).