In a world where women are respected, men are slaves and maids, and are inherently inferior. Cao Xuan, a humble male slave who was sold into a music studio, was supposed to please the nobles all his life, but unexpectedly awakened the memory of his past life - a soul from the patriarchal world. What's even weirder is that a mysterious system called "All Worlds Drawing Cards" appears in his mind. As long as he completes the human experiment tasks issued by the system, he can extract all things from all realms: magical weapons, skills, strategies, people's hearts, and even the power to change the world.
"Experiment on human nature? Then use this female lord of the world as a chessboard, and let the queens, saints, and female generals who are above us see with their own eyes what the real emperor's mind is."
From a music star to a powerful man behind the scenes, from a humble male slave to a supreme being respected by thousands of people, Cao Xuan calculated every step of the way, using human hearts as bait and desire as a sword to fight his way through the meat grinder of power in the world of female supremacy. When all the strong female emperors thought that he was just a male favorite, he had already raised the staff of authority obtained by drawing cards and declared war on the entire old world: not to overthrow the female emperor, but to let the whole world understand that the real strong men are regardless of gender.