Fukushuu no Kyoushitsu Wana ni Ochita Shoujo "Kyouko"

Kyouko was the popular kid in class. But one day, after accidentally peeing during class, she becomes the target of bullying. The girls treat her like a toy, forcing her to climax in the bathroom, and the boys in her class rape her... What will become of Kyouko?.. [Translated from getchu]