The Tale of Tonkara Valley

Taking place in a medieval fairy-tale setting, Princess Knight is the story of young Princess Sapphire who must pretend to be a male prince so she can inherit the throne (as women are not eligible to do so). This deception begins as soon as she is born, as her father the King announces his baby is a boy instead of a girl. The reason for this is that the next-in-line to the throne, Duke Duralumon, is an evil man who would repress the people if he were to become king, and because of this the King will go to any length to prevent him from taking over. (Source: Wikipedia)

One day, a young boy heads out to catch a haul of fish, so that he can afford to get good bread for his mother. While there he finds a golden fish who, in exchange for not killing it, offers him a golden scale which will grant any wish. Choosing delicious bread as his prize, the boy returns home successful. If he could get bread from one scale, what would he get with another? Based on a Turkish fairy tale. *Note: Published in Shufu to Seikatsu.*