In Hancheng, the most prosperous city in the North, a malaria disease of unknown origin broke out. The infected people were paralyzed physically and mentally and became like ghosts. In just a few days, the epidemic has grown and spread geometrically, pushing the citizens of Hancheng into the abyss of panic and despair. Fengdu, an industrial town located in the southeastern suburbs of Hancheng, turned into a hell on earth overnight. Xiao Jinzhiyuan, a young man from Fengdu, is an excellent human geography photographer. Since he was 12 years old, he has been repeating a strange dream, in which he fell into a misty canyon. He painted a picture of the canyon, but was accidentally selected into a folk medicine-seeking expedition because of this painting. In order to rescue his infected mother, Jinzhi followed veteran Qiye, biochemical medicine expert Xiang Yang and his friend Ergou on an adventure journey to the secret realm of Lingting. Lingting is a place that does not exist on the map. It is rumored that there is a magical medicine "Flower of Seven Nights" that can cure all diseases. The journey to find the medicine is fraught with dangers. Not only do they have to travel through war-torn primitive tribes, across bandit-infested river valleys, jungles surrounded by poisonous weeds and inaccessible snowy areas, they also have to face the test of their inner demons. During an adventure in a secluded forest, Jinzhi got separated from his team, and unexpectedly received a bell that revealed his destiny from a woman with long braids. He followed the call of Mi Mi's voice and traveled westward, where he met the strange foreign woman Lingwei. The fog in the canyon in his dream was suddenly lifted, and the truth about Hancheng Dian was gradually revealed... All of this was actually related to the shocking plan of Gosang, the chief of Nanming Kingdom. When they finally escaped from Gosang's clutches, they discovered that there was a bigger secret hidden in the secret realm Lingting. Can they unlock the shackles of their hearts and awaken the "Seven Nights Flower"?
