Originally Posted by
Hinoto-no-Ryuji
As much as I don't think any past animosity that may have existed has any bearing on current Au Ra relations, the answer to this is probably. We know that they originally fought one another in the Before Time, but eventually made peace; we also know that the Raen were largely assimilated into Doman culture as warriors, and currently live in isolated pockets in Othard's mountains, valleys, and seas. There must have been some reason for the mass migration out of the Steppe by the Raen, and the inhabitants of Sui-no-Sato claim to have been "driven" from their homeland, so it's very possible - likely, even - that the conflict ended on less good terms than the folklore implies.