5 : A Crime Within The Walls -

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.

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. 5 : A Crime Within the Walls

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 Deaths in towns (Safe Zones) are theoretically impossible

This arc explores "system loopholes" within the VRMMORPG world and the psychological toll of being trapped in a life-or-death game. pierced by a black spear