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She doesn't talk much but she is loyal. She is also determined, and once she sets her mind on a task she will not stop until it has been completed or she dies trying. She is loner or a mercenary, so she doesn't really hold allegiance to anyone but at the same time to everyone. She hides her emotions and doesn't like to bother others with them.
A sealed katana and the one she uses.
Rai is an illegitimate child and one her father didn't know about until she was 6, however he couldn't take care of her as he had already gotten married and had another child. This left a 6 year old Rai with no family as her mother had died a year or so before hand. She was on her own and she learned how to fend for herself quickly for a 6 year old. Then at the age of 7 she was by a group of mercenaries and trained in the art of the sword. At the age of 16 she left her care takers and went off on her own, it has been around 3 years since and Rai knows well that anything can happen.