the demonic fire dragon king

after acnologia and Alvarez Empire defeat the guild start do ignore natsu causing him to be depressed that his family ignore and shun him even tho he did so much he decided to leave but meet one of the 12 one of the spriggan 12 invel yura hu gives him the change do become the new emperor of alvarez witch eh acres and leaves with happy after 5 years fairy tail finally see natsu again but he's no longer the happy loud and innocent person he was now he's a serious powerful kind king and still has hsi END powers but they also meet old enemies hu they thought were dead like seilah and how will they deal this new natsu and the new alvarez empire and will they gain natsus forgivness