She divorced and heartbroken returned to her hometown. At the summer festival she once attended, she accidentally met her childhood friend, her first love. And as I stared at the fireworks, the bittersweet and thrilling memories of 10 years ago flooded back, closing the distance between the two of them. Moreover, when she missed the last train and went back to the inn, she went crazy with her burning desire. And Iku was disappointed by how different she was from back then!