Zenith

Zenith is the continent that serves as the main setting of Fire Emblem Heroes. It is home to the Askr Kingdom and the Emblian Empire, two nations vying for control of Zenith's portals to many other worlds.

Askr
The Askr Kingdom is ruled by a royal family with the power to open portals to other worlds. For many years, the Askran rulers worked along side the rulers of neighboring Embla to open and close portals and maintain peace across the worlds, but in recent times Embla has betrayed that tradition by refusing to close any portals. Prince Alfonse and Princess Sharena lead Askr in a desperate war to end Embla's conquests and return the universe to peace.

Embla
The Emblian Empire is ruled by a royal family with the power to close portals to other worlds. For many years, the Emblian rulers worked along side the rulers of neighboring Askr to open and close portals and maintain peace across the worlds, but in recent times Embla has betrayed that tradition by refusing to close any portals. The Emblians have invaded and conquered many worlds, binding their heroes to serve them in battle. Princess Veronica, Embla's ruler, desires to conquer all worlds and reign over the universe, but the lone Askr Kingdom stands in her way.