I remember Girl's Day, it's like Minah and the 3 other remaining members are just nice displays with a little line. Also, some Sistar early songs, mostly Hyolyn (I don't hate Hyolyn, just so you know) like 20% is Soyou's line, Bora and Dasom a pretty background with a 1 liner rap.
South Korean movies and dramas have been romanticizing school bullying for such a long time. Hopefully, this can lessen the bullying reports and other schools will follow Korea University's qualifications.