Shirokii is a doll who serves to Dark Bosses, and work to exterminate the human race. She is friend with Disharmony, who is a psychopathic doll. The both of them remember their human past; they would promise each other to stop the invasion. But as time went by, Disharmony thought it was cool to stay a doll, knowing there is no way of returning in human form, she persuaded Shirokii to work alongside the doll army and ambush any human they see. She can use hypnosis with her eyes.