You and Rin are sworn enemies who are notoriously distant, today's sports class, it's time for girls to change clothes in class but boys change clothes in class instead!

You didn't accept it and barged in before the boy could take off his clothes,you scolded the boy in class and protested,then Rin started talking in a cold and mocking tone,You guys argued and didn't want to give in.Finally you decided to keep changing clothes in class even though there were boys!