Shin Mahouka Koukou No Rettousei: Cygnus No Otome-Tachi

Shin Mahouka Koukou No Rettousei: Cygnus No Otome-Tachi summary: Follows two girls named Arisa and Marika. Though raised as sisters, Arisa is one day entrusted to the elite Jumonji magical family, separating them for two years. Now, both are enrolled at First High School, and finally reunite.