Similar to the R Season, Sailor Stars is split into two segments. The first part addresses lingering conflicts from SuperS and features the return of the Outer Senshi: Haruka, Michiru, Setsuna, and Hotaru, who has been reborn as a child. In the second part, Usagi says goodbye to Mamoru, who is departing for America to study. Concurrently, the Three Lights, an idol trio comprising boys Seiya, Taiki, and Yaten, appear. The new antagonist is Galaxia, a woman seeking to rule the galaxy by collecting human Star Seeds. Three new Senshi, the Sailor Starlights, emerge with their own motivations to defeat Galaxia, though they initially act without Sailor Moon’s assistance.