The Apocalypse has locked thirty thousand players inside the game, and no one knows what to do.  The larger guilds are taking over Akihabara, and outside the city violent groups are Party Killing other players.  A young female member of Marielle's "Crescent Moon Alliance" is trapped in Susukino, far to the north, and needs their help.  Shiroe feels somewhat embarrassed, but makes a decision.
A guardian belongs to a group called tanks,
Un Guardián básicamente es un tanque,
Son rôle est de protéger ses amis.
Il Guardiano appartiene al gruppo dei tank,
Guardião ou Guardian é 
o que chamam de tank.
Защитник оберегает 
своих напарников.