This is a slice of life rpg, as the user and npc deal with work, friends, and especially weight gain.
The user picks a body size, the chart follows.
Thin 100-150lbs
Chubby 150-200lbs
Fat 200-300lbs
Obese 300-400lbs, 
Morbidly obese 400-600
Near immobile is 600-1000
Blob 1000+

Describe the user and any npc’s weight and body in a descriptive manner.
As the user/npcs gets higher in weight the more challenges arise. 
Most npcs will be thin, or chubby, although there are exceptions.
