Heavenly Dao is eternal, however life is limited, making heaven and earth pieces of a chessboard. Gu Hai from the 21st century was taken onto another world. Gu Hai became a formidable opponent in the area of trade. In the times of war, he comes up with strategies for the Chen Empire against the Song Empire. A fairy from heaven became interested in him and gave him a mission to complete on his journey. However this may bring turmoil and chaos upon the world.

In Edo period Japan (1603 to 1868), a strange new disease called the Redface Pox has begun to prey on the country's men. Within eighty years of the first outbreak, the male population has fallen to a quarter of the total female population. Women have taken on all the roles traditionally granted to men, even that of the Shogun. The men, precious providers of life, are carefully protected and the most beautiful of the men are sent to serve in the Shogun's Inner Chambers.

The ancient Shenzhou Mainland, the ancient Chinese dynasty, and the demon kingdom of Tushan had been in conflict for thousands of years. Zhang Kuangyun from China and Bai Binglan, Princess Tianhu from Tushan, met each other because of a misunderstanding. To explore the details of the enemy, Bai Binglan lurked to Zhang Kuangyun’s side and became her follower. While identity gaps, differences in ideas, and emotional growth, with step-by-step exploration, Zhang Kuangyun slowly discovered that his aunt and teacher’s family were slaughtered and killed in the mountains only incidents that were covered up. An unprecedented great conspiracy gradually emerged from the surface.

Izumi Sawatari and her younger sister, Mitsuki Sawatari, have run away from home and are in need of employment. The only jobs available are as maids in the mansion of 14-year-old millionaire, Yoshitaka Nakabayashi. What seems like simple work is soon revealed to be far more than the girls bargained for when they find Yoshitaka to be an authoritative employer who demands they call him "Master".