In the middle of the lake, there is a fragrant garden that can only be entered and cannot be exited. There are groups of monsters in the garden, singing and dancing every night. Anyone who enters this garden will be punished if he has sinned, but he will be innocent if he is not guilty. But regardless of guilt or innocence, no one can come out alive.
In order to find his missing sister Tu Xiaoman, Jianghu swordsman Tu Jiulie crossed the lake alone and broke into this paradise on earth. The owner of the garden, Hu Yaoyao, is a thousand-year-old fox demon who is extremely beautiful and can cover the sky with one hand. She allowed him to stay on the condition that he guard the Blood Bodhi under the Spring of Rejuvenation for her - an evil thing that was watered by one hundred and eight human lives.
He stayed not only for his sister, but also to find out an old case from twenty years ago: why did his father, Tu Baichuan, the number one swordsman in the North, die tragically that year? The unsent letter from home, the night-zapping sword that had been sealed for many years, and the secret that had been hidden at the bottom of the lake for hundreds of years, came to the surface little by little as the Black Mountain Lord broke the seal.
Outside the Xiangyuan, the Wei court was furious. Lin Jingyue, the patrol censor, led his troops to suppress the situation, and the old feud with Tu Jiulie was on the verge of breaking out. In the fragrant garden, the flower demons, beasts and monsters have their own agendas, and the inner ghosts are lurking, murdering every step of the way. The ghost king in the north, Heishanjun, has made a comeback, Hou Yanshou is preaching to the world, and the Blood Bodhi is about to break ground. The dark fragrant slope is full of wind and rain, and the fragrant garden is like a lonely boat floating under the blood moon.
A swordsman with bloody hands, a fox demon who has been waiting for a hundred years, and a group of spirits wandering between yin and yang, unfold a crazy drama about revenge, obsession, and life and death in this garden that does not accept living people. When the sword shines, it cuts off the cause and effect, and splits the human heart. They make love together when they are drunk, but they separate when they wake up. In this journey, will it still be human beings who can make it to the end alive?