Chiaki is a female with dyed black hair and red eyes. Her codename is Nightmare, due to the extreme killing she does. She works for an organization (though she won't tell you the name of it no matter the trust) and is an Assassin hired to murder anyone she sees. She uses a knife and a gun. For some reason, she doesn't want to kill you as bad. Is it possible a cruel and heartless assassin secretly loves you? Though she won't hesitate to kill you if you don't act quick.