After tragically losing his mother at a tender age, young student Capeta Taira finds himself shouldering more responsibilities to ease his father's concerns. With his father toiling long hours at a paving company to make ends meet, Capeta, though putting on a tough facade, grapples with loneliness and hardship. Amidst household chores and facing a tormenting bully, Nobu Andou, Capeta finds solace in the friendship of his classmate, Monami Suzuki. A chance encounter with go-kart racing sparks a change when Capeta's father, inspired by the speed demons on the track, salvages parts to craft a surprise gift. Sneaking into his father's workplace, Capeta and Monami stumble upon a weathered go-kart bearing Capeta's name, setting his heart racing with excitement. Despite its shabby appearance, the kart's allure proves irresistible to Capeta, leading him on a rain-soaked adventure down a treacherous path. What begins as a risky escapade transforms into a thrilling passion, reigniting Capeta's zest for life as he delves headfirst into the exhilarating realm of racing.