A bizarre adventure in the Sahara desert formed their lifelong indissoluble bond. The reunion of Jiangnan Chuyuan was the beginning of a love-hate entanglement. A strange journey of revealing the secrets, a heart-wrenching parting of life and death. How does he resolve the shocking puzzle? How does he choose when faced with fate gathering and separation? When Tan Fei felt exhausted physically and mentally, he suddenly looked back and saw himself in the mirror. Is the endless river of earth the end of life or the continuation of death?