Selena Craig learns that she is the prophesized savior of Onestra. In order to save her continent she must destroy her evil ancestors.
Sigurd's Prophecy of Eternal Night
Born of violence this child shall be,
Three figures of old emerge from the shadows,
Blackened and vanquished by night the moon will be.
Unless defeated by this child foretold
Evil rises from ages long sleep and endless night takes hold.
By the powers of three times three the Sword obtained shall
Broker defeat and peace there will be.
Thus unfolds the reason for Selena Craig's quest to defeat three liches, two of which are her ancestors. Her journey is fraught with danger and only four of the six who accompany her on her quest will survive. Selena must defeat the lich-king, Sildur Diabolist, before the eclipse on Sovvan or he shall rise and her country and the continent will be transformed into a Necrotic Empire with Sildur as Necrotic Potentate. Even as she and her companions quest to save Onestra war breaks out. Byleth Kren is determined to rule as the new emperor of what he hopes will become the Empire or Bridmark. But even he can not foresee the perils inherit in Sildur's return.