It's the day of the school's ball sports tournament. Izumi-kun is playing soccer with the boys, and Shikimori-san is participating in the girls' volleyball match. Izumi-kun knows he can't contribute much, but he plays his hardest anyway. Shikimori-san worries about him, given his natural unluckiness... and surely enough, he gets hit in the face by a soccer ball and blacks out. He ends up in the nurse's office while Shikimori-san looks after him, meaning the two of them are alone. Then Shikimori-san says she's going to stay with him instead of heading back to play in the volleyball match...

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!