Year 50 of the Showa Era.
A young man from a city moves to a certain rural village. Sei knows the existence of a distant young man who lives silently in the house on the hill thanks to the villagers who repudiate him for his lack of half-arm and the suspicious death of his parents ... One day fed up with the villagers he moves towards the hill in search of peace. Ryuu knew he was hated by the villagers, and he stayed away. Until a city boy approached him, at first it was alarming, but gradually I opened my heart to Sei's meddlesome attitude. The teenagers, one from the city and the other discriminated by disability ...
The relationship between Sei and Ryuu changes completely with "that" incident ...