Nearly a year after the Sword Art Online incident, a new virtual reality MMORPG known as balloon Gale Online has taken Japan by storm. One day, as a top ranked player named Zexceed appears on a streamed broadcast via his avatar, a cloaked man calling himself and his weapon 'Death balloon' fires a bullet at Zexceed's avatar through a video screen, causing Zexceed to suddenly convulse and disconnect. A month later, Kazuto Kirigaya is called to meet up with Kikuoka Seijiro of the Ministry of Internal Affairs' Virtual Division, who reveals that Zexceed's user was found dead of acute heart failure a few days after his avatar was shot, also showing evidence of a similar case involving the passing of a GGO user. As Kazuto states his doubts that a game could cause someone's heart to fail, Kikuoka, believing Death balloon is specifically targeting professional GGO players, asks Kazuto to once again take up the role of Kirito and investigate what is causing the victims to die. Remembering all the people who died in SAO, Kazuto thinks over his decision whilst spending time with Asuna at the park. Meanwhile, in the world of GGO, a sniper known as Sinon is in top form.
s02e01 - The World of Guns
s02e02 - Cold-Hearted Sniper
s02e03 - Memories of Blood
s02e04 - GGO (Gun Gale Online)
s02e05 - Guns and Swords
s02e06 - Showdown in the Wilderness
s02e07 - Crimson Memories
s02e08 - Bullet of Bullets
s02e09 - Death Gun
s02e10 - Death Chaser
s02e11 - What It Means To Be Strong
s02e12 - Bullet of a Phantom
s02e13 - Phantom Bullet
s02e14 - One Little Step
s02e15 - The Queen of the Lake
s02e16 - The King of the Giants
s02e17 - Excalibur
s02e18 - Forest House
s02e19 - Zekken
s02e20 - The Sleeping Knights
s02e21 - The Monument of Swordsmen
s02e22 - The End of the Journey
s02e23 - The Dream Begins
s02e24 - Mother's Rosario
In the near future, a Virtual Reality Massive Multiplayer Online Role-Playing Game (VRMMORPG) called Sword Art Online has been released where players control their avatars with their bodies using a piece of technology called Nerve Gear. One day, players discover they cannot log out, as the game creator is holding them captive unless they reach the 100th floor of the game's tower and defeat the final boss. However, if they die in the game, they die in real life. Their struggle for survival starts now...