In a secluded mountain village, Natsu lived with her grandmother since childhood, who raised her in the strict traditions of the old way of life (after her mother abandoned her): the art of ikebana, the tea ceremony, and a reverent attitude toward nature. However, anything related to the futanari body, love, or relationships remained outside their conversations—a silent, inexplicable space. Natsu grew up aware of her physiological peculiarity, but lacking the knowledge or courage to ask, she considered it mundane, unable to consult a doctor or peers. That summer, at her grandmother's insistence, she went to the city for the Tanabata festival for the first time. In the crowd, amidst laughter and festive lights, she gazed lostly at the lights of the skyscrapers and advertising screens.