Going only with pics but seems like the state made some law that makes some people lose their human rights, I'm gessing the unlucky sould is randomly choosen and it was this asshole ojou-sama girls, or maybe is choosen by community poll, so assholes get it first, after that she was treated as a object and for some reason sent to house of the classmate she tormented more, that proceeded to break her. Feels weird that her faimily did nothing, but hentai logic, as a object they just had to steal her and put her in a room for a month. I daresay she is almost lucky that only one guy got to fuck her instead of becoming the school cumdump.
OK, read the smmary on dlsite, is a new law to punish bullies, they lose their human right for 1 month and their victim can do whateer they want with them, police can't and will not help, ojou father was a politician so he had to let it happen.