@phil777
Yeah, she is really a shitty "friend". Basically using MC as bait for some of the girls and vice versa, so that they don't just leave the club, or report her. She also throws money at them all the time.
I don't think she is necessarily a bad person and that she ultimately means well. It seems it's just her having bad people skills tied with one of her interests. However, if this was normal and not a manga, a lot of things which have happened lately could be considered sexual harassment. Some of it is clearly sexual assult, no question (the teacher would be in jail for sexual assult if the genders were reversed).
Also, it could be that the ??? marker is meant to be Niagara Falls, though maybe on the Canadian side? The marker isn't exactly on it, but it is close enough, plus it isn't like the map is perfectly geographically accurate.