* Based on a light novel series by Inoue Kenji with illustrations by Haga Yui.Fumizuki Academy is a school that strictly stratifies students, and the comforts of their classrooms, by test scores. The lowest ranked class, Class F, lead by Yoshii Akihisa, the idiot amongst idiots (and the series titular Baka) rallies to use experimental fantasy summoned monsters to battle the higher ranked classes for school supremacy.With the power of idiots and one of the smartest students in Fumizuki Academy, Himeji Mizuki, a girl who was sick on the day of the placement test and ended up in Class F together with Yoshii, one by one the other classes begin to fall before them.