There are four seasons every year, and those who control these four seasons are of course not ordinary humans. They are the four sisters of Caiyun Pavilion. The leader is the snow demon who is in charge of winter, and her home is Xueqi Peak. She is the master of mana and power among the four sisters. This means that everything in Caiyun Pavilion and the world is basically controlled by her. Below her is the "Yu Dew" who is in charge of spring, and her home is the land of Yugen. "Shui Jing", who is in charge of summer, occupies the territory of Suiyuan Hill, and "Ye Soul", who is in charge of autumn, occupies the territory of "City without Tears".