3rd person POV:
Let's start with Aries.
(Mirai Kamiki -Gundam Build Fighters Try)
She is quite well known throughout the school. The ace of the girl's soccer team, basketball team, volleyball team, and the one who put the performance of Aquiarius' gunplas for the entire school to see. Her main gunpla is the Grimgerde, a high mobility close-combat mobile suit. She can have quite the temper sometimes and can get fired up quite easily. But there only one person who can neutralize all her emotions in one fell swoop, and Gemini doesn't like it one bit...
Last name: Ramba
birthday: 12th April
Battle style: in-fighter/out-fighter
next up, is Taurus.
(Eru Chtanda -Hyouka)
She is the only person who watched Leo and Pisces' battle, besides Libra. She's a well-respected member of the cooking club, as well as a decent builder and fighter in her own right. Her Gunpla is was the tequila Gundam(it's Mexico's entry into the Gundam Olympics in G-Gundam. The Gundams there are very 90s stereotypical. For example, Canada's was a lumberjack Gundam, the USA's was a football Gundam, India's was a snake that came out of baskets when music is played Gundam, France's is basically Napoleon Bonaparte Gundam, but what's the funniest is Holland's Gundam, WHICH WAS A WINDMILL. AND THEY GOT TO THE FINALS) in middle school, but has since replaced it with a taurus, a mass production transformable space mobile suit. she's convinced she likes Leo, but is that really the case? Probably yeah...
Last name: Bolide
birthday: May the 4th
Battle style: Defender/In-fighter
Now for Gemini.
(Kobato Hasegawa -Haganai)
She is Aquarius' neighbor and childhood friend, and she built her own gunpla, with Aquarius' help. She can understandably get annoyed whenever she sees Aries, but it doesn't get to her as much as it used to. She has 3 siblings. An older brother named Geminass(who pilots a Gundam Geminass), and younger twin sisters(who pilot the Reborns and Reversible Gundams) Her own gunpla is the Wing Gundam Twinkle(it even has a motorcycle). She also has chunibyo(8th grader syndrome), and only switches off it for formal occasions. It's like she has it on for a reason...
Last name: Twinketh
birthday: 12th April
Battle style: out-fighter/middle-shooter