An irreversible experiment created "Si Ming". It swallows everything and gives everything. As long as it abides by the rules, you can get everything you want. The greater the cost, the greater the harvest. An orphan forgotten by everyone became the petri dish of this experiment... And it remains to this day. A forensic doctor who can see the memory of the deceased meets a thousand-year-old lonely soul with "Si Ming" sealed in his body. They get close to each other during the investigation of the case, and jointly fight against the immortality experiment that spans thousands of years. This is the only proof of each other's presence in the world.
Concept: The essence of existence is not an objective fact, but to be perceived, remembered, and loved. Destiny can be ignored, but the choice is always yours