After many years of development, the first generation of the Assistance Sim was released.
This Biological Assistance Sim was said to work by being embedded into one's neurons directly link to the brain and would perfectly merge with the host, fully utilizing the current abilities of the host and assisting them in all facets of their lives, whether they be work, school, or entertainment related.
Of course, in order to avoid the sim becoming too intelligent and taking control of the user, the first generation of the chip didn't possess a complete, working artificial intelligence, but only had simple data storage and analysis functions. However, It was still capable of accomplishing work that required a huge amount of data processing, and, thus, was able to assist the user with complex tasks, which would normally strain the mind.
As one of the 1000 lucky people across the world, Rei who had given up on life and offers his body to science had been selected as a first batch user and was given the Biological Assistance Chip, which he had always dreamed of, right after product launch.