The situation is like initially there was a group of people gathered in a classroom and they were equipped with a VR-like glasses. This glasses has the ability to control their minds and make them act according to the MC’s will. The MC has a very beautiful and talented older sister but was drugged and raped by a group of men so she committed suicide. The girls seemed to bully her or something like that. I remember the plot was something like the men would experience death and the girls would be raped by the MC. In the story, there is a flashback where the MC’s sister’s best friend was also raped by these people. I remember that in the end, the police came and saw these people sitting quietly in class (maybe I’m wrong so you can skip this part). The series has about 3 to 4 chapters. Pls help me find it. Sincerely thanks.