Black Swordsman. Lightning Flash. Crimson Warrior. Kindred Assassin. Four years ago, these were just four of Aincrad's top players, but to Kazuto, Joshua, Asuna, and Koharu, they represent cherished memories, both good and bad. So as they hang out with their friends, the four reflect on the past and their rise in the early months of SAO.

With three floors under their belt, Kirito, Asuna, Jaymes, and Koharu continue their progression up the lower levels of Aincrad and embark on the Elf War Campaign with their new friend Kizmel. Up ahead lies an oceanic beachfront, a dark and spooky ruin, a floor filled with puzzles, more perilous bosses, more fighting between the DKB and the ALS, and a new party member from Asuna's past. But it's not just the game that's becoming perilous, for there are other players who strive to make the death game their playground...

On the fourteenth floor of Aincrad, Jaymes and Koharu continue their journey together in their quest to beat the game. Along the way, they encounter a girl named Sanya, who has a powerful sword that gives the user enhanced strength as it sucks the victim's health. But there's only so much a solo player can do, even with that power...can they teach her that lesson, or will it come at a deadly cost?