Shen Jianwei, a noble daughter of the Marquis of Yongning, was framed by political enemies. After her family was destroyed, she was branded a slave and exiled to the north. On the way, the prince broke his marriage, was insulted by the Jinwu Guards, blizzards and wolves came one after another, and the vicious criminal slave Xiao Jin was forced to become his "private property". In a desperate situation, she relied on her grandfather's medical books to awaken her medical skills and save the life of her maid Yuzhu. Xiao Jin broke his own leg bone to sharpen his sword to kill the Wolf King. He broke the neck of the bully in the dark night. When the mine was separated, he screamed the word "alive" like a fire in the embers. The two were thrown into the black stone mine. She struggled in the sewage and bone-corroding mine wash, and he fought for his life in the dead mine filled with poisonous gas. The miners who coughed up blood and the spreading plague were pushing this hell on earth deeper into the abyss.