Asuna and Kirito managed to thwart a murder attempt by Mort and his PK gang at the last moment! To unravel the mystery of the dangerous poisonous fruit used in the attack, they head to the dark fortress of the elves that looms over the devastated land, the Galley Castle. After reconnecting with their companion Kizmel, she tells them about the folklore of the elves, revealing an unexpected connection between the PK gang and the Fallen Elves...