With the danger in Draupnir dealt with, Lufas's new concern is the demihuman uprising led by Leon, a former member of her Heavenly Stars. Lufas thus sets her sights next on the city of Tyrving, from which the "Lion King" commands his troops.
However, in order to reach their destination, Lufas and her party must pass the Empire of Mjolnir—the domain of the deadly Vampire Princess Benetnasch, who just so happens to have a morbid obsession with none other than the Black-Winged Conqueror.
As one of the few members of the Seven Heroes who still lives and the only one not to have suffered any impairments, will Benetnasch finally be able to get revenge for a duel that ended in frustration two centuries prior? Lufas will have to learn to surpass her own limits before it's too late to stop her... but at what cost?