She bullied and spread lies about Sawako.
This. Kurumi seems cute and tsundere for Sawako now but early on she was one of those sneaky rival girls who bully the heroine and don't fight fair. I liked the change tho. It was pretty well done.
She told everyone that Sawako was using her friends to become more popular and that she really didn't like any of them
Ahh okay .. I forgot to say thank you yesterday so thank you. Last question, do you know what chapter she first showed up? I wanna refresh my memory
Somewhere from chapter 5-10 I don't remember exactly tho
I think I have problems with reading long ass mangas because I can't remember the small details especially the ones concerning the secondary characters ╥﹏╥ so can you please remind me what she did before that she feels so guilty ?