Abi

'''Princess Abi is a bird demon in the form of a human who controls a large number of horrible demon birds. she uses these birds to gather blood from humans so that she can help heal her mother, who had eaten a poisonous demon.'''

One day Naraku meets Abi and offers his help by giving her a special trident made from himself which will help protect her against Inuyasha.

'''He actually just helps her so that he might gain access to the gate between the living world and the dead. '''

Eventually her mother recovers and attacks Naraku, who kills her, and then proceeds to kill Princess Abi.