Uchiage Hanabi, Shita kara Miru ka? Yoko kara Miru ka?

The story is set on one day during summer vacation. It follows a group of boys who try to view a fireworks display from the town lighthouse to see if they look round or flat when viewed from the side. Meanwhile, one of the boys, Norimichi, receives an invitation from his crush Nazuna to run away with her.