Rie Shibusawa is the Vice-president of the Etiquette Club. Rie is usually brash, hot-headed and unpredictable, a foil for Reika&#039;s cool head. Rie is equally strong on the battlefield as Reika and is ever loyal to her and her family. Rie has an extreme hatred for the Debutante Club and is a struggling student at St. Ignacio&#039;s. 

Despite the title, this is not a feature but the three-part OAV Battle Skipper (1995), which Takashi Watanabe directed before going on to Slayers. 
When the members of the Etiquette Club at St. Ignacio's School for Girls go down the tubes--literally--they acquire the skimpy outfits they wear to pilot the unfortunately named BSs or Battle Skippers, state-of-the-art military mecha. As "Extars," the Etiquette Club members fight to eliminate evil from the world, which means the bizarre schemes of Sayaka, the nasty, super-rich president of the rival Debutante Club, and her flunky, Todo. 
The series was created to promote a line of robot toys from Tomy, and viewers who are willing to accept high school girls' quarrels escalating into battles involving satellite weaponry may enjoy these silly adventures. 
(Source: AniDB)

Shiho Niiyama was affiliated with Aoni Production. Niiyama was famous for voicing Kō Seiya, otherwise known as Sailor Star Fighter, in Sailor Stars and Deedlit from Record of Lodoss War among other character roles (see below). She was also involved in one seiyū group, Virgo, who are the voice actresses of the anime and game, Ojōsama Sōsamō. She was diagnosed with leukemia in 1998, and died of internal bleeding following pneumonia in 2000. She was 29 years old. After her death, her ongoing roles went to Tarako, Satsuki Yukino, Makiko Ōmoto and Junko Noda. Niiyama's last work was the voice of Deedlit in Record of Lodoss War.