The urban legend that "Scissors-san", who cuts elementary school students with scissors, appears in Toride, Ibaraki Prefecture, has become a hot topic. Around the same time, fellow junior high school students, Chiba Akira and Minamiki Shuhei of the good friend group "Lemmings", have a plan to regain the days lost by the events that occurred in the summer of the second grade of elementary school six years ago.