Sanakami Ru(眞神ル) is a Blader that travels alongside her older brother: Sanakami Rekka travels all over the world, she enjoys finding fun and interesting things and make new friends during this journey.
Ru is a young girl with long orange hair, and ruby coloured eyes like her brother, she wears a black cardigan over a white polo shirt with small red and gold bow, and a black skirt.
As an adult, she maintains a professional look, wearing thin, serious glasses, tying her hair back into a ponytail, styling the front to keep it out of her face. She can often be seen wearing professional clothing.
Ru is a very bright, soft and nice person who is a bit air-headed, she is always looking for exciting and interesting things that can extend the little world of hers and bring more fun to her, she loves cute things just like all the girl does but she likes nurses the most, her dream is to become a nurse when she grows up, but she is illiterate, she cannot understand writing and has to use her fingers when counting, she does not use I for herself but uses Ru-chan instead.
She is also a person who takes promises very seriously, to her promises are something that can't be taken lightly and they person promising has to complete the promise.
Ru has matured into a successful and well-adjusted adult. She has a no-nonsense personality, but keeps her obsession with promises.
Ru uses a balance-type Burst bey, Amaterasu Nine Absorb.