Oryo is constellation that is part of Cassiopeia and is named after a famous leader from the Sengoku period.

Wang Liang was the equestrian teacher of King Daoxiang of Zhao. He is said to have taught the king that when on horseback, it is most important to be one with the horse and not be distracted by those around you, and that in the same way, a ruler and his subjects must work together to rule the country.


In ancient China, the starry sky was divided into four parts, and four divine beasts, the Azure Dragon, the White Tiger, the Vermilion Bird, and the Black Tortoise, were placed in each part. Each divine beast was given seven stars, making a total of twenty-eight stars arranged along ecliptic.

Wang Liang is one of constellation in the starry sky, and it is said that one star represents the charioteer and the remaining four stars represent horses.

In addition, because Oryo was a great driver for the king, the expression "man and horse as one" was born, and from this the way of governing a country was explained. In this way, the story of constellation is the origin of one of the legends that explains how to govern a country.