Fifteen years after the events of the first game, Emily Kaldwin is dethroned by an otherworldly conspirator forcing herself, or her father, Corvo (not canon) to go on a journey to clear her name and reinstate her rightful title as Empress.
Fifteen years after the events of Dishonored, Empress Emily Kaldwin is removed from the throne when dissidents pull off a coup d'état. Now Emily, or her father - and mentor - Corvo Attano, must do what is necessary to reclaim Dunwall Tower and the mantle of Empress.—Ash Hollowell
Dishonored 2 starts off when Emily is about to become the new Empress. Yet, all hopes for a better future are destroyed, when her aunt makes an appearance. Emily and her father are blamed for killing the enemies of the throne. Now it is up to Corvo Attano, or Emily Kaldwin to save the Empire of the Isles from the bloody reign of Delilah.—Scientiiaa