Sailor LeadCrow, Karasuma Akane in civilian form, was the second of Galaxia's minions known as the Animates.|
It was the job of the Animates to gather StarSeeds. AluminumSiren, from what I've seen, came the closest to capturing SailorMoon's StarSeed.
When AluminumSiren was introduced she was viewed as a rival to LeadCrow. However I believe that their relationship resembles that between Usagi and Rei, in that they are very close friends. (Even if they fight a lot.) Like when TinNyanko killed AluminumSiren LeadCrow wept for her.
The Animates are not really evil. [Ok, I know I had said that they were Senshi, however, I was partially wrong.]They joined Galaxia, stealing their power from the Senshi of their planet, LeadCrow's being the planet *Coronis*. This made her a Senshi by default.
Senshi Name: Sailor LeadCrow