Izumi-kun and Shikimori-san make plans to see a fireworks show together. As Izumi-kun is readying his yukata, his dad starts to tell him something with a serious expression. Then, on the day of the fireworks show, Izumi-kun sees Shikimori-san looking adorable in her yukata and tries his hardest to impress her... but his heroics are no match for Shikimori-san's. After they enjoy the festivities for a bit, Izumi-kun starts to lead Shikimori-san somewhere else... but then Shikimori-san's sandal strap breaks!

Preparations are underway for the school's athletic festival. Izumi-kun was hoping to avoid being placed in the highlight event, the boys and girls mixed relay, but unluckily enough, that's exactly what he's chosen for. But Shikimori-san and all of their friends end up on the relay team with him, so he feels like it'll actually be fun this time. The gang wastes no time starting to practice for the race, but it doesn't go so well for Izumi-kun and Hachimitsu. They refuse to give up, continuing to practice until the day of the festival comes. Hachimitsu seems to be in very low spirits before their event starts...