The Sailor Scouts, exhausted after a lengthy battle, settle down to study for their high school entrance exams as this series begins. Unbeknownst to them, new enemies are already plotting against them, readying the world for domination by harnessing the power of pure hearts. The Scouts have their work cut out out for them, and find that not only do they get some help from a mysterious source but that Sailor Moon has acquired a new power that comes in handy against powerful foes. In these episodes, the Sailor Scouts are surprised when their battle with Eugeal leads to the discovery of Sailor Uranus and Sailor Neptune's true identities and sets the Scouts on a path that leads to the Holy Grail. After they learn the secrets of the Talisman and the Holy Grail, Sailor Pluto joins the Scouts, forcing the Scouts to realize their quest to save the Earth has only just begun.