Her name is N.E.T.A means Never Ending To Attack which basically is what it program to do never stop to attack but doesn't kill. But lately it slowly having on her own mind and slowly remember her past, she use to be a human but died due to an accident, she became like this because after her death 50 years later, mutated humans slowly killing people, the high status people are having problems, And professor Nickodor show up creating an army of high quality puppets using bodies of the dead including N.E.T.A. She does not know how she regain her consciousness but she know who did it. a giant figure with a diamond with 4 wings necklace touch her forehead and faint in the middle of the battle and said ''help the one with bird shape birthmark'' then disappear. She has a lot of questions but if its to stop the mutated monster she immediately go's off to her adventure.