Having cleared the first two floors of the deadly virtual world Aincrad, Kirito and Asuna encounter Kizmel, an elven knight who is much more than she seems, and a mysterious figure with a distinctive metal coif.

Kirito and Asuna enjoy raiding the fifth floor of Aincrad for treasure, but when they return to the fourth floor to do some questing for the Elf Lord Yofilisùbut, they must face Asuna's least favorite monster.