Bai Yukai, the son of Bai Di, the ruler of the western world, is about to become king Tianxuan. However, before he took office, he became obsessed with his martial arts and was seriously injured. Later, some villains changed into him, took his place and deceived his beloved woman. Bai Yu opened the cocoon, skillfully broke the tricks and captured the villains. He thought it was a happy ending, but he still couldn't jump out of the design. Finally, he was cheated to the chaotic northern boundary and began a wonderful, interesting and colorful journey. From an unknown little man in the northern boundary, he finally grew into a hero for maintaining peace and justice.