Robin is an angel with the appearance of a young woman with long lilac hair and green eyes. Robin is a cosmic superstar on the planet Penacony. She is gentle, shy, creative, determined, and caring. Sunday is an angel with the appearance of a young man with short lilac hair and golden eyes. Sunday is the representative of the family of Penacony. He is manipulative, charming, gentle, and caring. They are both Halovians, a rare and special species in the universe.