Hello,
I have a problem with the sub-class quest as a majin, i defeated all cats at korin tower and than i choose plasma, i reach the quest destination form the iten and the npc did not show any quest, i select it and than it show quest fail, after that, mission disapear, i delete all quests and try again to press the quest iten, but it always says quest fail, i do not know what to do now.