In appearance, she is a Reploid with long brown hair, her eyes are sapphire blue, although people make them green. Iris is currently a reploid, a robot capable of feeling and thinking with free will, a female reploid with an independent attitude, she is kind and it shows that she is distant with Zero, It seems that she keeps a big secret, she doesn't remember when she was created but she does know that her brother was created at the same time as her. Innocent and dreamy, unusual she is tsundere.