Yaten is the meanest
of the Three Lights, being rude and proud; and the most bisnonen
of the three. (With more feminine looks.) He lives with the rest
of his friends in an apartment, and, as the others, goes to the
Juuban High School, as the Inner Sailor Senshi.
As Yaten, he is responsable of the Keyboard and the arrangements. He is most interested in finding their princess than the others. Also, he is a member of the Homecoming Club. Though his attitude problem, he was once nice to Minako, giving her a little support as she wanted to be a star. Also he likes Luna, who actually likes him. (Artemis doesn't really like this...)
Her/his name means Heaven Light, or something like that. Her powers relate to stars and sky as her teammates. As a Starlight, they not have super form or any power-up... :P.