My first fireworks date with my first girlfriend, Ichika. Seeing her in a cute yukata, I decided to kiss her today. We ate frankfurters together and Kokoro watching the fireworks, but a sudden heavy rain separated us. Ichika said she was going to the bathroom and Ichika came back. I started to worry. Meanwhile, Ichika had accidentally met her ex-boyfriend and was forcibly taken out to a hotel... The rain still didn't seem to be stopping.