Heaters: Legend of the Celestial Archmage

"I'll do whatever it takes to protect my world even if i become a villain".

Iode de Pandavatton, a wizard from an average peasant home supposedly found out that he the inheritor of one of the founder of the wizard tribe.

Due to these power, he was having visions of a distant future. he went around his world (heaters) telling them of his visions. but as time goes on it was forgotten and Iode himself vanished.

many years passed, Iode saw himself traveling around various planes; underworld, earth, the celestial realm etc.

but Iode soon found his way back home but instead of laying low and protecting the his world behind the scenes, he went on a conquest campaign claiming it for the greater good.

He succeeded in his conquest but heroes soon rise from the conquered nations to put an end to his villainous act. but when the true threat comes would Iode, the heroes and the nations have unity and strength to stop it?