One Punch Man!
During these three days or so days, a few freshmen, who were originally together with them in this freshmen area, had applied to leave this freshmen area due to the pressure from Grant and the others. Only by doing this, they were able to escape from their bullying.
However, there were lot more freshmen who had decided to huddle together and form a group. After all, the students that were able to enter the War God Academy were all considered to be at the pinnacle of their own respective academies before. Although their sense of superiority had dimmed after they entered the Academy, they still had pride deep down inside. Therefore, if they were to leave this freshmen area due to the current circumstances, won't it be same as they telling others that they were afraid of these bastards and were forced to choose a humiliating method to escape their bullying?
Their prideful selves would not accept such thing to happen.