Taiping Meishan collapsed overnight, a strange plague swept across the city, and ordinary people turned into bloodthirsty monsters. Su Qingyuan, the sixteen-year-old only daughter of the county magistrate, has lived in a deep house since she was a child, and has a kind and gentle heart. Disaster struck suddenly, and she and her father, an upright official, were trapped in the county government's desperate situation. At a critical moment, her father solemnly entrusted her to Lu Zheng, an Orion who lived alone in the mountains all year round. Lu Zheng has a scarred face and a cold and taciturn personality. He was accidentally rescued by Su Qingyuan three years ago. Meeting in a desperate situation, no difference in troubled times, he accepted the oath of trusting her with his life, hid his passion and joy, and protected her from escaping with his brute strength. The beautiful girl in the clouds fell into the dust in the past, full of fear and ignorance. She could only rely on this strange and reliable mountain hunter to embark on a journey of redemption and return in the devastated and chaotic world.