Yu-Gi-Oh! 5D's: Reverse of Arcadia

Stardust Accelerator sequel. A member of the Arcadia Movement with no memory of who she once was, Epsilon finds herself caught up in a war between the forces of good and evil. With Duel Spirits appearing in the human world, the Herald may be the only one with the answers as an old foe rises again... Very slight Yusei/OC. References to GX series 4 (undubbed).