Selen

In the television series, Selen conceals her identity behind a mask, black trench coat, and mechanical voice while using an old mansion as a hideout. When unmasked, she closely resembles Yayoi, who is described there as her younger sister and the next Millennial Queen. In the movie and manga continuity, Selen is instead described as Yayoi's younger sister and bears a facial scar. In the film, she fights the La Metallians to save Earth and dies after being overwhelmed by enemy aerial forces.