First Login is a prelude CD drama to .hack//Roots.
Ovan calls Shino to meet him at Arche Koeln Waterfall to discuss something. Ovan unexpectedly arrives before Shino. Shino had just met with Tabby for the first time, and Ovan somehow senses Haseo's arrival into The World. And so begins the revival of the Twilight Brigade.
- First Login was only available to people who preordered .hack//GU: Rebirth in Japan.