Kengo Kawaguchi's "Brain Miso Purun!" Appears as a new edition! There is a king in the junior high school classroom!? "Junior 2 with a white beard" King appears! Ikkyu II, who doesn't do anything, SMEP, an unsuccessful idol group, a united robot member who is always entrusted with the role of stretching his body, Hayashi-san, and other silly characters that will make your brain go "Purun!" Four-panel cartoon! An opening book!!