" A Crime Within the Walls " is the of the anime series Sword Art Online (SAO). It kicks off a two-part murder mystery arc where Kirito and Asuna investigate a seemingly impossible death occurring inside a "Safe Zone". Plot Summary
This episode is the first half of a story that concludes in Episode 6: "Illusionary Avenger" .
A witness and former member of the Golden Apple guild who provides background on the guild's tragic history. 5 : A Crime Within the Walls
This arc explores "system loopholes" within the VRMMORPG world and the psychological toll of being trapped in a life-or-death game.
The lead investigators who begin to develop their working relationship during this arc. " A Crime Within the Walls " is
Deaths in towns (Safe Zones) are theoretically impossible due to the "Anti-Criminal Code" unless a player accepts a duel. Since Kains did not appear to be in a duel, the duo investigates how he was killed.
Griselda’s husband, whose motives regarding a rare ring item drop become central to the mystery's resolution in the following episode. Guide to Watching A witness and former member of the Golden
While Kirito and Asuna are taking a break in a town on the 57th Floor, they witness a player named Kains hanging from a window, pierced by a black spear, before his avatar shatters.