Thread:Demonicjester01/@comment-104.7.80.211-20160717110840/@comment-28884330-20160718002652

Raynare is a product of the Fallen Angels' failed imitation of the Evil Piece system. In canon, Evil Pieces were created first a few centuries before the story started, while the Brave Saints of the Angels were created soon after the Peace Treaty, if I'm correct. Due to the impurity of their race when compared to normal Angels and Devils, the Fallen couldn't make a perfect reincarnation system, so the humans (or other species for that matter) that were transformed into Fallen Angels, while obtaining stronger potential power than natural born Fallen, had their sanity shattered and were left psychologically unstable. That particular aspect, along with the negative emotions caused by the circumstances of her death, transformed Rin into Raynare, psychologically speaking. After becoming a Fallen she lost the memories of her human life, but a semblant of memories about Issei remain, but those were overcome by that same insanity.