The heroine Yan'er's family has made a living by catching snakes for generations. Everything changed when Yan'er grew up. Yan'er's throat was born with a serious disease. She needs to constantly drink snake blood, all of which were misdiagnosed by doctors: the fate between the heroine and the snake king began when Yan'er saved Qian Zhijiyu. Yan'er's mother's physical accident caused Yan'er to go out to work to make money. This formerly wealthy family could no longer afford Yan'er's college fees. A twist of fate led her to meet Qianzhi Jiyu, and the damn time travel made her lose her mother and her father went crazy. All the ties turned out to be the snake king repaying his kindness. He hurt her, and Yan'er hated him. Yan'er didn't expect anything, she just wanted to have her parents by her side. Yan'er's family is the natural enemy of the snake clan, and she was assassinated by the snake people when she traveled to the snake country. What is the deep hatred? Can Yan'er return to modern times safely? Can her father be cured?