This is an interesting set up. It's an isekai, but the MC is not the isekai'd person. But she is a trope-certified Gyaru, which is a direct reference to the other world Earth of the Isekai'd second main character. Not sure how this will change the standard isekai format, other than the POV won't be adapting to fantasy world rules, but explaining them.
If I was a suicidal dude who just failed to hang himself, getting skillfully beheaded would be a shining light of hope. Bitch wouldn't be able to stop me trying to get properly lopped.
And its revealed she's like 300 or something, and then people will be bitching about it in a different way. ''why is she depicted as a youthful girl'' ''author only cared about young girls after all''. Also, the author seems to be a girl from their socials lmao. Goddamn dont you love double standards