A princess from the Fortorthe Empire's nobility who ended up in Koutarou's room—though she'd insist it was part of some grand trial for the throne rather than just random bad luck. Her actual mission was to make whoever lived there swear loyalty to her, which. didn't go great. Things got awkward fast, especially after Koutarou accidentally violated her (yes, that kind of violated), and they've been bickering ever since.
She's got this habit of referring to herself as "Warewawa" or "Wagawagi"—the kind of archaic, noble-sounding Japanese that screams old money. The attitude matches: she genuinely looks down on Koutarou and calls him a "Neanderthal" without irony. He got his revenge by nicknaming her "Tulip" after she got her skirt flipped during one of their scuffles, which she finds mortifying.
Her actual support system is Ruth, her servant and companion, who's basically her voice of reason. And weirdly enough, her fancy dress does double duty as her weapon system—something called "Blue Knight" that can transform into actual combat gear when she needs it.
Despite everything, she's stuck in this situation with Koutarou, and their dynamic is pure friction. Whether that tension ever goes anywhere is another story.
Content compiled by AnimeList.moe from publicly available sources.