After the social programmer died suddenly, he was bound to the high-dimensional system and became a "memory recycling agent." He wanders among the people at the bottom of the city, specializing in recycling the most painful and forgotten memory fragments of others, and turning them into "emotional coins" that can be circulated in the interstellar black market. He can use the "memory afterimages" sold by these currency exchange systems to obtain other people's professional skills, language skills, and even knowledge in key fields, and jump from a northern drifter with nothing to an elite in various industries at zero cost. But every memory recovered by him retains the "karma debt" behind it. Although those whose grief was removed have regained their lives, the "logical chain of life" corresponding to their missing experience has been broken, which will eventually cause huge chaos in reality.
