Real Name: Hino Rei
American Name: Raye Hino
Name Meaning: Soul of Fire
Age: End-16
Birthday: April 17
Sign: Aries
Planet: Mars
Bloodtype: AB
First Appeared: Japan-Episode 10 America-Episode 7
Family Members: Father (Statesman); Grandfather
Favorite Color: red and black
Hobbies: fortune telling (also reading, in the SFC RPG)
School: Brookdale Private School (T*A Private Girls' School)
Castle: Phobos Deimos Castle
Favorite Food: fugu, Puffer fish
Least Favorite Food: canned asparagus
Favorite Subject: ancient writing/calligraphy
Worst Subject: modern society
Likes: Little lizards and Ravens.
Has trouble with: television
Strong Point: meditation
Dream: to be a head priestess
Hopes to go to: Deep Sea
Favorite Gemstone: Ruby
Motto: Men can't be trusted!
The third senshi that Usagi meets is Mars. Unlike the others, Rei does not go to Juuban Secondary School with the rest of the Senshi; instead she goes to a private Catholic school (T*A Private Girls Academy). This is somewhat ironic considering that Rei is in training to become a Miko. A Miko is a female sorceress or, in this case, a Shinto temple maiden. The other girls at TA worship her, even though oddly enough, she is also rejected as being a weird shrine maiden with strange powers.
At times, it appears that Rei is not very loyal to Usagi since the two of them are seen constantly fighting during the Sailor Moon series. There is much tension at this time; this is due mainly to the fact that the two are fighting over Mamoru. Rei went out with Mamoru for a short time, which made Usagi extremely jealous. In addition, Rei challenges Usagi's right to lead the Senshi several times. However, when the chips are down, Rei stands behind Usagi. Rei only seems to have a crush on Mamoru, and is more excited over the idea of having a hot boyfriend than anything else. Though admittedly she does feel bad when she discovers that Mamoru and Usagi were lovers in their previous lives, but she deals with it.
Though Rei and Usagi always fight, Rei is the most protective of the Inner Senshi over her. For example, Mars is the one who saves Moon's life on their way to fight Queen Beryl by destroying the last of the DD monsters who was going to kill Moon. Also, in the R movie, Mars is the one who pushes Moon out of the way of the flower-creatures' attack, which took the rest of the Inner Senshi hostage. Rei/Mars often displays "tough love" for Usagi.
Rei's powers are flame based. This fits her character because at times she has a fiery temper (which is most often directed at Usagi). In addition to her Senshi powers, Rei also is spiritually sensitive (which gives her some psychic tendancies). This ability proves useful many times to the Senshi.
Rei lives in Hiwaka Shrine with her grandfather (mother’s side) and Kumada Yuuchirou. In the manga it is explained that her mother is dead and that her father is alive but she prefers living with her grandfather to living with him . Yuuchirou is a street-beggar who after seeing Rei decided to become a disciple of Rei's grandfather. He has a big crush on Rei, but Rei claims there is no relationship between the two of them, there are strong suggestions to the contrary. Rei also keeps ravens and has ESP. She's devoutly Shinto, and therefore has powers that relate to that religion, such as receiving visions and being able to "read" fires. One of Rei's other Shinto related powers is her anti-evil scroll power. She throws her ofuda and says, "Rin, pyou, tou, sha, kai, jin, retsu, sai, zen. Akuryou taisan!" This basically means, "Evil spirits, be gone!" and it is used to get rid of evil. For instance, in the R movie, she throws a bunch of ofuda at people possessed by plants, and they all become unpossessed.
Sailor Mars has pet ravens named Phobos and Deimos (which are the names of the moons of Mars). They have been shown in human form in the manga, where they are said to come from planet Coronis (which is not a real planet).
She also likes composing songs and singing.
Rei becomes first involved with Usagi and Ami when buses leaving the shrine reportedly vanish mysteriously, leading worried parents to believe that the weird family in charge of the shrine has kidnapped their children. Jadeite, in disguise, works at the shrine and is the one who is responsible for the students' disappearances. When Rei confronts him, he sends her to some hole in space (or whatever) where he has kept all the other buses. Usagi arrives at the same place when she manages to grab hold of a bus being sucked into a portal. While there, Luna sees the sign of Mars on Rei's forehead glow when she is being held by a Youma. After Sailormoon frees Rei, Luna she gives Rei her henshin stick. Rei then transforms, becoming Sailormars, and she destroys the youma of the day with her "Fire Soul". Afterwards, she joins the Sailor Senshi.