堕落乙女異聞―堕ちたる勇者と真実の魔剣―

Eristia Vitral, the last hero of the Order in Lescatie, sets out on an adventure through the ruins of the Order as she seeks out a powerful artifact, "Magic Sword of Truth", with her faithful squire Yuriy. From her efforts, she'll learn more about the Order and the "truth" within herself than she ever bargained for...

[From Wikia]