In 2100, technology is highly developed. Scientists have developed a technology for preserving and transferring human memory, which is equivalent to realizing "immortality" in disguise. When a rich person is dying, he can spend money to store his lifetime memories in a biochip, and then transplant the chip into the brain of a normal person's "host". The memory in the biochip will gradually be released and overwrite the host's original memory. Finally, the host's consciousness will be replaced, realizing the regeneration of the rich person. The protagonist of the story unfortunately became a host. When the original memory entered the countdown, he fought back and created a new era of human society.