QUICK FACTS
Japanese Name: 冥王せつな (Meiou Setsuna)
Meaning: Moment, Dark King
American Name:Irwin named the doll "Celia." The dub uses "Trista".
Meaning: Celia means "Heavenly" and Trista means "Sad," both quite appropriate.
Birth Day: October 29th
Zodiac Sign: Scorpio (Ruled by Pluto)
Blood Type: A
Fav. Color: Dark Red
Hobbies: Shoping
Japanese Voice: Kawashima Chiyoko (also plays teacher Haruna-sensei and brother Tsukino Shingo)
American Voice: Sabrina Grdevich in R/Susan Aceron in S
Favorite Gemstone: Garnet
Troubled by: Cockroaches
Strength: Sewing
Wants to be: A designer.

GENERAL STUFF
Meet Setsuna (Set-soo-nah). She is a very private and isolated person. Late in the R season, Sailorpluto (セーラープルート) appears to the Inner Soldiers to plead to them to save Chibiusa, but she doesn't reveal herself as Setsuna yet. Setsuna is very cold and distant from the Senshi and is unhappy that they found out her true identity. She is the only Senshi that wasn't reborn; therefore, she is extremely old but still good looking! ^_^ Setsuna does not attend regular school in the anime, though I believe she is a physics student in the manga. I guess with eternity on your side, you can do physics in your sleep. ^^ When the Outer Senshi realize that they each hold a talisman, Setsuna removes her talisman, the Garnet Orb, from the Time Staff. Pluto is the Soldier of time and space and spends a lonely existence guarding the Doors of Time. She's fond of Chibiusa, whom she calls Small Lady, as they were both friendless and had a common bond. In turn, Chibiusa affectionately addresses Setsuna as Puu (プー). Pluto granted a time key to Chibiusa to save Neo Queen Serenity during the R season. As we soon learn, Pluto only shows up when things are looking really bad.
MY OPINION
I kind of like Setsuna, too. Though her character is sorely neglected, especially in the anime, she seems to be to science what Neptune is to art; smart, multi-talented, and pretty to boot. Pluto seems cold but her heart is just as big and generous as can be. I mean, she *did* sacrifice her presence to allow Uranus and Neptune to live during the S season. She even joked around a little with Usagi in Stars. ^_^ Puu-chan is sooo pretty, too! Well, barf on the one outfit she almost exclusively wore. You'd think someone with a desire to design clothes would actually change the ones she was wearing, no? ^^;;; Her boots are that same overused style we've come to know, but the rest of her fuku is really cool and original. Also, the colors don't clash for a change. The sleeve-less original was better than the generic super fuku though. There was a little booboo with her fuku, however. Though we generally see her black/dark red fuku, she actually appeared in early R clad in silvery gray skirt, collar, and boots. It was interesting. I love her green hair. You just have to love this pretty soldier; I mean, Setsuna's got the looks, talent, power, and doesn't look a day over 300 years old. ^_~
TRANSFORMATIONS
Pluto Planet Power, make up!
Setsuna holds her henshin stick high and says this to transform into Sailorpluto and Super Sailorpluto.

ATTACKS
Dead Scream!
Sailorpluto holds up her Time Staff and the end becomes a pale violet-pink mini-planet that whirls into an enemy.

Dark Dome Close!
Sailorpluto raises her Time Staff and it releases energy that pauses time.