In the four realms, all living beings die without leaving their souls, only the remnants of memories are left gathered in the memory ruins. Shouyi casts the memories of the master into ashes, using lamps to absorb thousands of joys and sorrows, not wanting anyone to be completely forgotten in the world; Heaven's way of purifying memories makes Xie Linyan hold a fan to eliminate eternal pain, firmly believing that suffering should return to nothingness. Thousands of years ago, the seeds of fate were planted in the ruins. After a rift and catastrophe, the two concluded a memory compensation contract. He wants to keep the past, he wants to wash away the pain. Their paths are at odds with each other, but they are forced to share all their memories and backlash. The human world seeks reverberation, the demon world resolves obsessions, and immortals and demons reveal their falsehoods. When the ruins of memory are on the verge of collapse and the four realms are facing the danger of overthrowing history, they abandon the two dead ends of defending or destroying and open up a way to choose memory that has never been seen before in the world. The tenderness is preserved and the pain is dissolved. Two people who were burdened by eternal shackles went from competing against each other to becoming each other's only way back.
Purpose: The past in this world should not have only two endings: preserving it completely or erasing it completely. Choose memories, accept joys and sorrows, pain and tenderness all have meaning; even if you are bound by the shackles of fate, you can break away from the established destiny and find a third path for yourself and all sentient beings.