This story is a sequel to Fortresshy: The Nine Fathers
Fluttershy has returned to Equestria after being temporally displaced to another world, where she was raised by a loving but insane family. She didn't return alone, though. Her new family came back with her, now working for Princess Luna, their new Fortress being built near to Ponyville. All involved would need time to adjust.
Unfortunately, time waits for no one, pony or human. Still, the former RED Team - now Team RED MOON - is used to handling craziness. After all, they live under the same roof.
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Part of the PWNY-verse.