This is kinda dumb. They saw her for only a few seconds as she entered the estate and immediately concluded that the rumors were false. Not only that, but they also decided she was a refined and wise young lady—without her even speaking to them once, mind you.
It's funny how this type of manga tries to present itself as not like other isekai manga then proceeds to use every isekai manga cliché there is. It's literally the "I'm not like other girls" of manga. I will keep reading just in case something good happens.
On another note, how the hell did...