Peagasus's real name is Helios. He's the priest of the Golden Kingdom, guardian of the golden crystal, and protector of beautiful dreams. Queen Nehelania captured him and kept him. Helios saw a bright light (Rini's dreams) and transformed himself into Pegasus, following the light. Pegasus hides in her dreams and talks to her. He befriends Rini and gives her the Stallion Reve with which he is able to communicate with her while she's awake. Him and Rini delvelope a relationship too.