Sailor Stars is also known as the Sailor Starlights( Sailor star fighter, Sailor star healer, and Sailor star maker)
Sailor Starlights in civilian forms is a group of singers called Three lights.
Civilian name of Sailor Starlights
Sailor star fighter: Kou Seiya
Sailor Star Healer: Kou Yaten
Sailor star Maker: Kou Taiki
Sailormoon Sailor Stars is divided into two arc
The first arc solve some conflict from the last season with old villain Queen Nephrenia(Nehelenia)
And her new allies Mirror Parredary.
The second arc start with Mamoru who goes to America(Harvard) to study. The new villain for arc two is Sailor Galaxia. This is where Sailor Starlights step in. Seiya(Sailor Star Fighter) fell in love with Usagi.Also, besides Sailor Starlights there another new characters Sailor Chibichibi Moon and Princess Kakyuu.
You can watch the last episodes of Sailor Stars on