Mikagura Gakuen Kumikyoku

A girl named Eruna Ichinomiya is about to start high school but finds all the schools unappealing due to their dull uniforms. She becomes interested in Mikagura Academy after passing its entrance exam. Upon enrollment, she learns the school enforces strict rules, including mandatory participation in culture-themed clubs and a battle system where students represent their clubs in competitions. Eruna must now uncover her abilities and prepare for her first battle.