Rose is a member of The Sorority with Venice and Eunice Natasha. Like Eunice, she has brief appearances in Sorority Rites, and Rose also appears in the beginning of this video that shows the story of Yanna before the events of Sorority Rites. So far, Rose hasn't played any particular role in the AppSir narrative, except as one of Venice's supporters as a Sorority girl. She is either shown chatting (or gossiping) with Venice, or appearing to give Yanna a cold shoulder.