The post-apocalyptic wasteland swallows up civilization, and Su Qingci, the former eldest daughter of a wealthy family, becomes a wanderer. In order to survive, she cultivates fields in abandoned villages and learns farming. She meets the seemingly affectionate Lu Shiyan by chance, and the two support each other in desperate situations, and gradually develop a tacit understanding. But Su Qingci didn't know that Lu Shiyan approached her because she was somewhat similar to his deceased friend, and the shadow of the substitute quietly shrouded her. At the same time, her jealous cousin Su Wanqing, her twisted suitor Gu Yanze, and her hypocritical cousin Lin Mo all appeared one after another, trying to steal supplies or set traps to push her into the abyss. In the test of survival and people's hearts, can Su Qingci and Lu Shiyan break through the illusion of doubles and use spiritual unity to break the haze of doomsday?