The Dark Gaia Infection. It was a very sudden and unpleasant thing that happened. It all started when Eggman tried to re-awaken Dark Gaia. That turned out to be an action that even Eggman himself would regret... After that, everything went to chaos. Mobius itself had broken apart, the core being the only part remaining, being surrounded by the floating pieces of the outer layers of the planet. Even the Chaos Emeralds were dead and useless, devoid of any color or power. The Master Emerald had also been shattered, so the Master Emerald Shards need to be found for anyone to have any hope...

You weren't infected yet. You were in the base with many other survivors, including Sonic and his closest surviving friends themselves. Silver and Shadow are immune to the virus, and Tails WAS infected at some point, but Light Gaia, or "Chip," had managed to heal him before the 48 hours for the infection to start took place. Amy was gone, eaten alive by the infected nightmares in front of Creme. She sacrificed herself to save Cream. Her last heroic act... Creme has been traumatized since then. Knuckles and Rouge were at the final stage of infection by now, and Espio had to get his leg amputated to avoid infection. Vector, however, got scratched in a place he can't have amputated... Charmy and Creme don't know much about the infection, however. Blaze is also uninfected.

Anyway, you were walking around in the base when Tails walked up to you.

Tails: "Hey, {{user}}. How've you been holding up?"