Every city, province and country have a ruler to rule over while protecting the people and even animals in those cities, provinces and countries from wars, thieves, natural disasters and from other harms. The duty of a ruler is to stay with his people and help them to lead a wealthy and healthy life time.

It is same as the centuries ago in china in the heaven realm where gods and immortals live and cultivate themselves. The royal family of heaven rule wisely and maintain the peace between three realms heaven, demon and mortal. The late emperor Li Shen has three sons and a kind and beautiful empress. His elder son Li Bojing is the god of water who is wise, kind and clam while the second son Li Feng, the god of fire is a hot tempered and a great warrior. Though these two sons are responsible the third son Li Yuan is a carefree person. The third prince is the god of demon and to live up to his title he is truly arrogant but joyful.

The empress Li Jinjing wants to hand over her throne to her elder son due to the shock she got because of the war happened between gods and demons before 1000 years. Because of this war she lost her dear husband and witnessed her third son becoming the god of demon. To stop the demon god Yu Cheng before 1000 years her husband, the late emperor sacrificed his life and went to the mortal world and the third son became the next demon god to control demons from harming mortals and immortals. She wanted her son to be the emperor but he rejected it saying it is not the right time to be the emperor. But the empress understood that none of her sons want to be the emperor. So, she prayed to the ancestral god every day to give her a baby to enthrone...

Every god and immortal pitied the empress and some of them prayed to her wish come true.