Helios

Helios is the Gaurdian of Elician and Beautiful Dreams. He can't live in the mortal world, but is able to live in beautiful dreams. Chibi-Usa's beautiful dreams.

Helios has been forced to leave Elician by Queen Nehelanian and her Dark Moon Circus. The Queen is looking for the golden crystal (A sort of small horn that is gold and protudes from helio's forehead. It holds great power). She needs the crystal in order to live in the mortal world and not age. She is currently trap in a mirror.

Queen Nehelian was able to capture Helio's body, but when Helio's saw the light of Chibi-Usa's beautiful dream he was able to transform his soul into Pegasus and escape. He lived in Chibi-Usa's Dreams and gave the Sailor Senshi the power to transform into new sailor suits with different and more powerful attacks.

Throughout the series Helio's and Chibi-Usa grow quite close and in the end Chibi-Usa harnesses the power of the Golden Crystal and releases Helios from Nehelania's imprisonment. When Helio's goes to leave he gives tells Chibi-Usa that he will wait for her to grow up...so they can be together (Earlier on in the series they kissed).