Two girls are transmigrated into the bodies of the Twin Princesses of the Empyrean Empire. They have no memories of who they are, except that both of the girls were also twins before their transmigration, and a vast amount of magical knowledge. They each have their set of skills, and although they can't remember how they learned them, or who they truly are, they are looking for answers while also uncovering a world ending prophecy.
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Set in the Asenaverse, and this can be considered somewhat of a spoiler free(for the time being) prequel/prologue to Asena.