How to Unlock Different Races and Classes?:
* You unlock a race when you reach 40 relation points toward the
faction related to the given race.
* You unlock a background when you reach 50 relation points toward
the faction related to the given background.
* When you create an adventurer, if you have unlocked backgrounds
by retiring previous adventurers, you can choose such backgrounds
other than the commoner. -> Each background has different starting
relation points toward the other factions of the Kingdom.