Class Advancement had been added to Wartune: Hall of Heroes on version 5.1. Player will be able to advance their class to higher level via Class Advancement.
Once player reaches level 80 and unlock Dragon Soul system, the player will receive the Class Advacement Main Quest.
Dragon King Abyss
Class Advancement Quest I: Go to "Dragon King Abyss" and defeat Hillis. (Note: "Dragon King Abyss" cannot be entered via campaign and can only be accessed through the Quest Guide on the left of the screen. Players can only access the campaign when they are in Cloud City or Main City).
There are 5 bosses in the Campaign with the one boss in the middle as the main boss. Players need to defeat 4 bosses around to unlock the chain before fighting the main boss. Players must defeat all bosses to complete the quest.
Class Advancement Quest II: After completing the "Dragon King Abyss", player need to talk to NPC "Brad" locating in Cloud City to complete Class Advancement Quest II.
Class Advancement Quest III: Raise Dragon Soul become "Legendary Dragon Soul" and talk to NPC "Brad" to complete the Class Advancement Quest III. This will be the end of all Class Advancement Quest.
System that unlock after acheived Class Advancement