Amid the desolate remains of a once-thriving city, only the rumbling of a motorbike breaks the cold winter silence. Its riders, Chito and Yuuri, are the last survivors in the war-torn city. Scavenging old military sites for food and parts, the two girls explore the wastelands and speculate about the old world to pass the time. Chito and Yuuri each occasionally struggle with the looming solitude, but when they have each other, sharing the weight of being two of the last humans becomes a bit more bearable. Between Yuuri's clumsy excitement and Chito's calm composure, their dark days get a little brighter with shooting practice, new books, and snowball fights on the frozen battlefield. Among a scenery of barren landscapes and deserted buildings, Shoujo Shuumatsu Ryokou tells the uplifting tale of two girls and their quest to find hope in a bleak and dying world.

Taking a break from the hustle and bustle of Tokyo, Souta Tawara returns to his hometown in Kagawa. Though his parents are no longer around, his former home and family-owned udon restaurant reminds him of the times his family was still together. Reminiscing about his childhood, Souta enters the udon restaurant and discovers a grimy young boy sleeping. At first, Souta thinks nothing of the chance encounter and provides the boy with food and clothing. However, to his surprise, the boy suddenly sprouts a furry pair of ears and a tail! Souta soon learns that the nameless boy is actually the rumored shapeshifting tanuki that has been inhabiting Kagawa for many years. Thinking that the boy has been living a lonely life, he decides to take him in and name him Poko. Udon no Kuni no Kiniro Kemari follows the heartwarming relationship between Souta and Poko, and through the time they spend together, Souta recalls his own past, the place he left behind for the city, and the relationship he had with his father.