One of the mod’s most impressive features is that it assigns each sim a personality based on the Myers-Briggs 16 personality test, which has a significant impact on how they behave and interact with other sims. Your Sims will experience visible emotions, repeating memories of past events that will influence their moods, a complicated fitness system, and reactions to their own appearance. It’s a large mod that affects practically every area of the game’s life.
Slice of Life by KawaiiStacie is easily the most extensive and complete realism upgrade for The Sims 4.