In the near future of "emotional standardization", emotions are clearly priced commodities. Fang Zhe, an illegal emotional trafficker who travels underground, relies on his rare "absolute empathy" physique to extract, reproduce and even customize any ultimate emotional experience for customers - whether it is bone-eroding sadness or near-death ecstasy.
However, the iron law of the industry is "emotional conservation": every transaction quietly changes the personality background of both supply and demand parties. When the monopoly giant tried to dilute all emotions into harmless consumer products, and when a customer asked him to completely delete a painful memory carrying love, Fang Zhe discovered that what he was selling was no longer just emotions.
He is trading fragments of his soul, and the first thing to be priced may be the gradually blurring "human" part of himself.