It's launch day for one of the most highly-anticipated video games of all time. Join the character "Kirito" as he begins his journey in the virtual world of Sword Art Online.

It’s been one month since the players have been locked in the game. 2000 people have died; the first floor hasn’t been cleared yet.

To save a group of players and Asuna from a Boss character, Kirito is forced to play his trump card.

Armed with a large sniper rifle, Hecate II, the young girl Sinon is making a name for herself as the No. 1 sniper in GGO. When her squadron ambushes another squadron, she succeeds in taking out her first target. But when she takes aim at her second target, a robed “Behemoth,” he dodges the bullet.

Kyouji attacks Shino, saying he'll kill himself after she's dead. Kazuto saves her at the last second by jumping Kyouji. During the fight, Kazuto is hit with Kyouji's poison syringe, but miraculously it doesn't work and Kirito is saved. The next day Kazuto and Shino go to meet Kikuoka, and discuss the incident. Kikuoka has a message from one of the captured Death Guns...

Kirito and the others are tasked with subjugating the Frost King Thrymr, and a quest to recover Excalibur. It's Yui's guess that this isn't a quest planned by the game admins, but something automatically generated by the system. And if that's the case…