@arkserion
I haven't read the raws but to me it seems like she is in love with him and this is just how she twistedly expresses said love. She is a sadomasochistic yandere.
never had I thought the words "come on, show him who's the boss when it comes to bullying girls, MC" could ever cross my mind, but here we are. Must be the NTR's effect
I'm glad that he took over, maybe we'll get to see why "she prefers him."
Though you'd think she wouldn't let it slide, or just say she prefers him bully rather than the new guy.
Not to mention it doesn't seem like she doesn't like it either.
i have a splendid idea.
1. Kato already drove a kid to suicide before right?
2. expose Kato identity to their family.
3. one of family member kill Kato as act of revenge
4. with Kato gone, Nakajima back to bullying and they live happily ever after