The Sims Medieval. It is similar to the Snob trait in The Sims 3. It conflicts with the Unkempt trait.
Sims with the Vain Trait are the most beautiful Sims in the world, at least in their own eyes. Now why can't other Sims appreciate how gorgeous they are?
- The Sim will get the "I am Beautiful" buff (+10 focus for 5 hours) when looking in the mirror! This is in addition to the normal "Attractive" buff (+10 focus for 4 hours) from Gussy Up at a mirror.
- The Sim loves a house filled with mirrors so they can see how great they are!
- Vain Sims can Enthuse About themselves and Extol their Personal Virtues when interacting with others.