When consuming a chocolate cornet, which end do you start with, the top or the bottom? Which side constitutes the top and which the bottom? For that matter, what is a chocolate cornet? The correct method for eating pastries is merely one of the numerous daily occurrences examined by the girls in Ms. Kuroi's class. Meet Konata, an athletic and intelligent girl too devoted to her favorite primetime anime to excel in anything other than otaku culture; Miyuki, the cute, bespectacled living embodiment of moe with encyclopedic knowledge of all subjects; Kagami, the bittersweet, tough yet shy straight-man to Konata's constant teasing and pranks; and her younger fraternal twin sister, Tsukasa, a kind but air-headed klutz. Witness this study of the human condition as our heroines explore the unexplored by questioning the ordinary!