The fierce battle with Múspell has ended and the Order of Heroes has returned to Askr. Not long after the party's return, however, they were attacked by soldiers from Hel, the realm of the dead.
As Alfonse and the others struggle to repel the forces of Hel, they encounter generals of the dead plucked from history—warriors who proclaim themselves the legendary rulers Líf and Thrasir.
Meanwhile, Hel, the sovereign who rules the realm of the dead, delivers a chilling order to her daughter, the princess Eir, regarding the Order of Heroes: "Join their army. Obey them, body and soul. Give yourself to them completely. Once you earn their trust...you can slaughter them at my command."
And thus Eir joined the Order. In her eyes, sorrow dwells deep, as she contemplates Hel's command...