Nothing weird here, just some sacred ancient phrases that a gloomy Japanese girl who got hooked on an otomege as a coping mechanism and got reincarnated into mentioned otomege couldn't possibly know of... yup.
To be honest, rather, I would expect people to think CPR was witchcraft—except they bloody have witchcraft here already and think it's no big deal, so...
I see another noble house without guards
Well this world has an otome game like vibe so I'm not surprised if she's also a reincarnator but I hope she will be good to our girl and they become friends because no one needs petty drama.