Xiaozhi awakened his future memory when he was five years old, and got a system called 9527, determined to change everything about himself. However, Xiaozhi, who was only five years old, would not become more stable until he was about fifteen years old. Xiaozhi only learned about the future with the help of the system, and it took at least seven or eight years to complete the fusion of memories. It took him about twelve years old to integrate all the memories, and he did not go out to adventure until he was fifteen years old. What follows is the development of Xiaozhi's story that will never be allowed to be in future memories. (Single heroine or no heroine)
It's nice, but I've seen similar ones before