Eight years old.
Probably somewhere around 4 foot something. ???
Unknown. Estimate of around 90-100 pounds.
Rin is a human girl that tried helping Sesshoumaru when he was weak and injured after fighting with Inuyasha. She and her fellow villagers are actually killed by a demon wolf pack, but Sesshoumaru goes and finds her after picking up her scent and blood and revives her with his sword, Tenseiga. She plays an important role in the series because Sesshoumaru always claimed he hated humans and could feel no emotion towards them, but it seems after he met Rin that he starts caring for her and allows her to come with him and Jaken and even protects her.