Mikagura School Suite Light Novel #1

"Eruna Ichinomiya is preparing to enter high school, but there's just one problem - none of the schools interest her! The uniforms are all too boring, until she discovers Mikagura Academy. After Eruna miraculously passes the entrance exam, she discovers that Mikagura Academy isn't a typical school. Mikagura Academy only allows students to form culture-themed school clubs, participation in those clubs is compulsory, and there is a battle system where students must compete with each other as representatives of their clubs. Now Eruna must discover her own power and win her first battle!"