When a massive interstellar object appears in space, behind the world of Equis's moon...the various races on the world below realize that they are not alone after all. In an attempt to reach out, Princess Twilight Sparkle sends an arcane message through the object. In the blink of an eye, the message is sent into the unknown...and soon enough, the stars responded.
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The Systems Alliance, nearly six months to the day after the end of the Reaper Invasion, is still knee-deep in the process of rebuilding. With the Citadel still damaged, much of the Alliance Fleet still in drydock, and many of the Mass Relays still offline...to say the situation is dire is an understatement.

That changes when a mysterious broadcast echoes throughout known space, amplified by an active Mass Relay. The Alliance sends the fully recovered Commander Jonathan Shepard and his reunited crew aboard the newly christened Normady SR-3, to the source of the broadcast. What they discover is a world full of fantasy, powered not by Mass Effect or by technology, but by Magic and Harmony.

Commander Shepard and his crew quickly find themselves deeply intertwined with this world, and in order to secure a future, both the Alliance and the Races of Equis must stand together against a conspiracy that threatens to unleash total devastation upon all it encounters.
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Set in G4, Season 4, in a Mass Effect 3 AU, where a fourth choice to exile the Reapers was selected.
Shepard's Team can be found here.