Natsu, revealed to be Minaha's older sister, drags her away for skipping curfew. With Minaha forbidden from participating in club activities under pressure from her family, Tamaki and Ayame decide to go to her house to try and convince Natsu and her grandmother. After a heated discussion over whether drawing is really necessary, Natsu offers to help convince her grandmother on the condition that both Tamaki and Minaha score high enough on their next exams...