Alright, best of luck to you, enjoy the rest of the time in Japan.
People not being persistent with police is part of problem here, I frequent Gakuen sai all the time on the weekends and it is just an endless stream of being brought here(generally see someone coming or going when I leave), Tried personally warning people that happen to be being brought here and it got me assaulted by a random street tout to the point I needed stitches (police did make an arrest of the tout) .
The police for whatever reason will tell people "You go to these types of shops, you live you learn" and try not do anything, but if people don't demand to file police reports they don't start getting numbers to prove there is something going on here, they won't heighten patrols etc, none of these stats will go to higher-ups that actually make decisions on what the folks on the street do.