Royal Family Ranking System

Royal Ranking System has subdivided into two ranks from lower and upper ranking. It has the same merit just like the original setting in the real world.

Web Novel Set
There's Rank 0 which divides it into two.
 * 1) Upper Rank 0: Emperor
 * 2) Lower Rank 0: Demon Lord (魔王)

Light Novel Set

 * 1) Upper Rank 1: King
 * 2) Upper Rank 2: Crown Prince
 * 3) Lower Rank 2: Duke
 * 4) Upper Rank 3: Minister - Types
 * 5) Lower Rank 3: Marquis
 * 6) Rank 4: Count
 * 7) Rank 5: Viscount
 * 8) Rank 6: Barony
 * 9) Rank 7: Knights/Baron (Heritage)
 * 10) Rank 8: Knight (Lifetime of Service)
 * 11) Rank 9: Knight (Lifetime of Service)

Promotion
As the original nobles of the Holfort Kingdom were all great adventures, a person can increase his or her noble rank through adventuring success or military accomplishments. Outside of those two methods, at least 3 generations of loyal work to the kingdom necessary to raise a family's rank.

Unique Rank
There are also some unique position that only selected and born-to-be one:
 * Saint
 * Preistess
 * Sacred Tree Guardian