Sess is badly hurt and lays by a tree when a little girl comes and brings him a fish he sends her away and she tries to bring him more but the people of her village think she is stealing the fish for herself and beat her. She tries to bring him the fish and is attacked by a wolf pack (Kouga's i think) and dies. Sess sees this and uses the Tensaiga to bring her back to life and she travels with him. She was an orphan that never spoke but she began to talk to Sesshomaru. Rin is only 7.
Submitted by Sango fan