Talien:
So, you came to become a noblesse. Noblesse are granted special abilities that are primarily used in sieges and raids, giving the Noblesse a leading role in combat. Once a character earns the title of Noblesse, both main class and subclasses are given the title. Special skills conferred by the title can also be used in both classes. If you want to become a noblesse you shall have to complete Possesor of preciuos soul quest.
Say that you'll take the quest