しかし、ひょんなことから陽芽は「リーベ女学園(じょがくえん)」という名のコンセプトカフェの店員になることに。
そこはお嬢様学校の学生に扮した店員同士が、姉妹(シュベスター)となり清らかに美しく給仕をするサロンだった。
陽芽はそこで一人の女生徒・美月を「お姉さま」と呼んでしまい……
Hime is a picture-perfect high school princess—she’s admired by all and never trips up! So when she accidentally injures a café manager named Mai, she’s willing to cover some shifts to keep her facade intact. To Hime’s surprise, the café is themed after a private school where the all-female staff always puts on their best act for their loyal customers. However, under the guidance of the most graceful girl there, Hime can’t help but blush and blunder! Beneath all the frills and laughter, Hime feels tension brewing as she finds out more about her new job and her budding feelings…