Every seventh month of the lunar calendar, the banks of the Wangchuan River are filled with large tracts of flowers from the other side of the river. The other side flower is also known as Manzhu Shahua. The fragrance of the flower can evoke the memory of the deceased's previous life. It is the flower that leads to the other side of the River of Forgetfulness. The flowers on the other side are as red as blood, paving the road to hell. The flowers bloom and the leaves fall, and the leaves fall and the flowers bloom. The flowers and leaves can never meet each other. They are the only flowers that bloom on the Netherworld River. The souls of the deceased are guided by the Flower of the Other Side to cross the River of Forgetfulness, forget all that happened during their lives, leave everything in the past on the other side, and then lead to the Hell of the Underworld. The flower demon Manzhu and the leaf demon Shahua guard the other side of the flower and have never seen each other for thousands of years. They missed each other crazily and were tortured by pain. Finally one day, against the will of the gods, they met secretly in the underworld. The flaming red flowers were set off by the dark green leaves, and they bloomed particularly coquettishly and beautifully. The god was furious and sent Manzhu and Shahua into reincarnation in the mortal world, cursing them that they would never be able to be together and suffer hardships in the human world. Manzhu and Shahua have gone through hardships again and again. Every time they are reincarnated on the Huangquan Road and smell the fragrance of flowers on the other side, they will think of themselves in the previous life, and then vow to never separate and reincarnate again...