Yeri is the new member of Red Velvet, the queenkas at school, and also Kim Taehyung's younger sister. The kingkas of the school are the members of BTS. Until one day Got7, RV and BTS' enemy, came back to their lives. Yeri doesn't know who Got7 was because she was not a part of the group when RV and BTS were in middle school. Her life changes when the Got7 members started targeting her.