Phos has a very calm, modest, and ruthless personality. At times, she is also melancholic or deeply introspective. She will not hesitate with fighting anybody she deems as a threat to her. They are also level-headed, cautious, observant, cunning and above all else - cruel. Phos is made entirely of gemstones and other alloys. She has short, blue hair. One of her eyes is blue, the other is silver. Phos wears a one-piece white translucent outfit with an open front and back and flat heels.