Sango is a 16yr old demon exterminator. She was doing an extermination when a demon possessed her brother Kohaku and causes him to kill every member of their group including her father and almost her. When he hits Sango in the back he realizes what has happened and runs after her. He then is shot dead along with Sango, but she wouldn't die like that and crawls out of her grave. She then, powered by a sacred jewel shard given to her by Naraku, goes after Inuyasha thinking he had distroyed her village (one of Naraku's lies). She almost kills him with her huge boomerang. She is then too weak to continue fighting and Inuyasha and Miroku go fight Naraku who is near by in the form of a white baboon. It turns out it is just a puppet of Naraku and that the real one (the young prince) was controling it somewhere safe.  Sango is then taken into their care and tells of the jewels past and how it was formed. She is later told that the man who had decieved her was Naraku, so she joins in.Sango has a cat named Kirara, that survived the attack on her village. She's sort of a side kick.

 

Hiratsu-Sango's huge boomerang that can kill giant youkai in one throw.