There should be like one of those Marmite/Stopani-type mangos about rich girls at a private all-girls schools and their over-the-top romantic tribulations and onee-samas and all that shit but it's only ever seen in the background and the actual focus is a far more stable and less wacky and ceremonial yuri relationship between one of the attending ojou-sama's maids and her bodyguard/valet.
But you can still piece together the background plot off context clues, like how you can put together the whole hidden McBain movie across all those different Simpsons episodes.