The Starlights are mysterious senshi that appear in Sailormoon SailorStars. In their human forms they are male. While in their human forms they form a rock group called the Three lights. The Starlights are originally female. They turn back into females when they transform. The Starlights are searching for Princess Kakyuu. The Outer senshi don't trust them and almost fight them. Sailormoon trusts them and believes that they are allies to the other senshi. The Starlights prove their loyalty to Sailormoon in one of the last episodes when four of the inner senshi have died and so has Princess Kakyuu fighting Galaxia. They help Sailormoon defeat Galaxia and Princess Kakyuu comes back to life just like everybody else does in the end. The Starlights and Kakyuu go back to their planet

Taiki Kou/Sailor Star Maker
Yaten Kou/Sailor Star Healer
Seiya Kou/Sailor Star Fighter