She divorced and returned to her hometown heartbroken. At the summer festival she once attended, she coincidentally met her childhood friend, her first love. And as I stared at the fireworks, the bitter and thrilling memories of 10 years ago came flooding back, the distance between us narrowed. Furthermore, when I missed the last train and went back to the inn, I went crazy with my burning desire. And Iku was disappointed by her who was completely different from back then!