Little is known about Rou Koriaze as she belonged to a very secret organization. Although, it is known she was the creator of Olliana.
Sometime in X784, she was excommunicated after being framed for a information leak scandal. This angered her, so after she left the organization, she fled to an empty laboratory, where she planned to make an "ultimate killing machine" to exact her revenge on those who framed her. After seeing her "failed" experiment, she had made the mistake of pushing the newly-formed Olliana to the ground. Olliana did what she was programmed to do, and morphed an iron lance, that pierced through her creator, killing her instantly.