
Hotaru was born on January 6, is a capricorn, and has an AB bloodtype. Her favorite food is Nihon Soba, or buckwheat noodles, while her least favorite is milk, which could be the reason for her frail state. She, like Michiru and Haruka goes to Mugen Gakuen
where her favorite subject is world history while her least
favorite is Physical Education. Her hobbies are reading and
collecting lamps. Her favorite colors are black and purple,
once again, her senshi colors and she dreams to become a doctor.
During the S season, Hotaru also constantly has little outbursts
of power that only the outer soldiers notice. She sometimes blanks
out only to find that she doesn't remember what happens during the
time between her seizures and her waking up.
As a senshi, Saturn is the soldier of Death and Rebirth. She is the unmatched strongest senshi in all of them (she can even destroy the world with two words!) The reason for the offer to Professor Tomoe to ressurect Hotaru is mainly to plant an egg inside her that would turn her into Mistress 9, the evil entity of Hotaru who tries to bring darkness and silence into this world by bringing Pharaoh 90. Hotaru does become Mistress 9, yet Hotaru defeats Mistress 9, and Saturn appears to Sailor Moon, then goes into Professor Tomoe's machine to stop Pharaoh 90 from coming. Super Sailor Moon follows her, and when the battle is over, brings to the rest of the senshi a baby girl. She is then given to Neptune and Uranus who then give her to Professor Tomoe who is recovering in a hospital (Turns out he also had a daimon inside him which is killed). This new Hotaru grows rapidly until, Saturn, once again, awakens. After regaining her senshi identity, Saturn turns the outer senshi into super sailor senshi.
Hotaru does not have a henshin
phrase in the anime, considering she is always a special case.
Even this transformation appeared only from the 'net considering
she never does transform in the anime.
The sequence is pretty short. Her nails kinda' just
glow then we see her face turning toward the side. The camera zooms
out and there she is, standing with her Silence Glaive.