Japanese animation in which a group of school children become fascinated with fireworks. Norimichi (voice of Masaki Suda), Yuusuke (Mamoru Miyano) and Junichi (Shintaro Asanuma) are determined to find out if fireworks look round or flat from the side; at an upcoming fireworks display, they will come to their conclusion. Meanwhile, a girl named Nazuna (Suzu Hirose) plans to elope with Norimichi or Yuusuke, depending on who is the winner of a 50-metre swimming race. If they had the chance to go back in time and do things differently, would they?