It's just occurred to me how different western stuff is with this scenario, you would expect her to be trying to play it off the best she could, like it was her own idea, because at least that way you save some face as an individual making a choice about your life.. but in a collectivist culture, behaving oddly in front of the group just locks you into this robotic, obedient state, requiring the bullies to force her to actually force her to say something and put on a smile.. and then that's even more creepily artificial.
We seriously need a bullying tag. It's a pretty niche fetish that gets lost in a sea of regular humiliation doujins, making them hard to find because they lack their own tag.