We are introduced to a mysterious scientist and his beautiful red-haired assistant, Kaori Night. These two are developing hundreds of little seed pods they call "eggs of Daimon" that have the ability to track down people with pure hearts. Their goal is to find the three pure hearts that contain the three legendary talismans that make up the Sacred Cup, a magic item that holds the power to control the universe. Raye is the first target selected by the first Daimon egg, and the Scouts are not powerful enough to defeat the Daimon that hatches from the egg, intent on stealing Raye's pure heart. The Daimon is successful in removing Raye's heart, but is attacked by two mysterious people with great powers, ( Sailor Uranus and Neptune) They destroy the Daimon and retrieve Raye's heart, but they return it to her once they determine that it does not contain a talisman.