This land has been called many names, but is now the continent of Ylisse. In the southeast is the Halidom of Ylisse, ruled in peace by the exalt, she who is revered for being descended from he who slew the fell dragon Grima, and the common people's connection to the divine dragon Naga. In the southwest is the kingdom of Plegia, they who worship the fell dragon Grima and wish for his return. Naturally, there would be tensions.
Lissa is used to all of this, as she and her older brother have lived in the halidom all of their lives. The stranger they have found, Robin, is not used to anything because of her vacant memory. She will have to grow accostumed quickly however, for tensions between Plegia and Ylisse are growing once again. War is only a few steps away, and to top it all off, the dead seem to want to be a part of it all, along with a mysterious swordsman who goes by the name of the Hero-King of the old kingdom of Altea.