Swordman's Memorial
After Kirito blocked the raiding guild's reinforcements, three mages of guild fired multiple magical projectiles at him. However, he used «Deadly Sins» to break all seven projectiles. As the reinforcements got into formation for battle, Kirito told Asuna that he would hold them off for three minutes with the help of Klein. In the meantime, the Sleeping Knights engaged the guild's forces blocking the path to the boss room. But, seeing that their assault was rendered useless by the intervention of the guild's healers, Asuna asked Siune to manage the healing herself and used «Flashing Penetrator» to break through to the healers, while killing the group's leader. After the healers were disposed of, the remained of the players were easily defeated, allowing Asuna and the others to enter the boss room. During the boss battle, Talken's spear was thrown into the air by the boss and it accidentally hit a crystal where the boss's two heads connected. Seeing that this caused the boss to assume a guard stance, Asuna deduced that it might be its weak point and tested it out by firing several ice pillars at the same spot. Confirming her deduction, Asuna left the healing to Siune to tell Yuuki to use a Sword Skill at the weak spot. Following Asuna's suggestion to use Tecchi as a stepping stone, Yuuki defeated the boss with her signature Original Sword Skill. After the battle, the group agreed to celebrate at Asuna's player home. While conversing about various things, Asuna asked whether she could join the Sleeping Knights, but, seeing that it resulted in an unpleasant reaction, she decided to change the topic and reminded everyone about the Monument of Swordsmen. At the monument, everyone took a picture and Yuuki accidentally called Asuna as her elder sister. Since she had also done the same in the boss room, Asuna pointed this out to Yuuki. Unexpectedly, Yuuki started crying and abruptly logged off.
Aired 29/11/2014EP 21 - Swordman's Memorial

Sword Art Online II
One year after the SAO incident, Kirito is approached by Seijiro Kikuoka from Japan's Ministry of Internal Affairs and Communications Department "VR Division" with a rather peculiar request.
That was an investigation on the "Death Gun" incident that occurred in the gun and steel filled VRMMO called Gun Gale Online (GGO). "Players who are shot by a mysterious avatar with a jet black gun lose their lives even in the real world..." Failing to turn down Kikuoka's bizarre request, Kirito logs in to GGO even though he is not completely convinced that the virtual world could physically affect the real world.
Kirito wanders in an unfamiliar world in order to gain any clues about the "Death Gun." Then, a female sniper named Sinon who owns a gigantic "Hecate II" rifle extends Kirito a helping hand. With Sinon's help, Kirito decides to enter the "Bullet of Bullets," a large tournament to choose the most powerful gunner within the realm of GGO, in hopes to become the target of the "Death Gun" and make direct contact with the mysterious avatar.
(Source: Crunchyroll)